Instructables: exploring - technology - science - popular http://www.instructables.com Mon, 22 May 2017 17:02:24 PDT BLOX v1.01 How to Repair a Cracked or Broken Circuit Board http://www.instructables.com/id/How-to-Repair-a-Cracked-or-Broken-Circuit-Board/
How to Repair a Cracked or Broken Circuit Board - More DIY How To Projects]]> https://cdn.instructables.com/F0D/GHWQ/FPBKYOME/F0DGHWQFPBKYOME.SQUARE2.jpg https://cdn.instructables.com/F0D/GHWQ/FPBKYOME/F0DGHWQFPBKYOME.SQUARE.jpg https://cdn.instructables.com/F0D/GHWQ/FPBKYOME/F0DGHWQFPBKYOME.SMALL.jpg The Lightning Stalker Step by step guide to repairing circuit boards Yes, I know, my hands are shaky. I didn't say it in the video, but the epoxy doesn't have to be Super Glue brand. There are several different brands of 2 part plastic bonder epoxy. Any of them will do. Of course make sure the power is removed and all ca...
By: The Lightning Stalker

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Fri, 2 Jan 2009 02:20:09 PST
BiPed robot V-3 http://www.instructables.com/id/BiPed-robot-V-3/
BiPed robot V-3 - More DIY How To Projects]]> https://cdn.instructables.com/FUH/GKO6/FIHVM223/FUHGKO6FIHVM223.SQUARE2.jpg https://cdn.instructables.com/FUH/GKO6/FIHVM223/FUHGKO6FIHVM223.SQUARE.jpg https://cdn.instructables.com/FUH/GKO6/FIHVM223/FUHGKO6FIHVM223.SMALL.jpg alex.v The BiPed robot V-3 was designed to get as close to the freedom of movement of the human lower body, it has 12 degrees of freedom. The frame is made of acryl-sheets and model servos are used as actuators. For now the robot is controlled via PC, autonomous behaviour when development finished. The so...
By: alex.v

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Fri, 11 Jul 2008 14:46:55 PDT
Easy Elephants Toothpaste Experiment http://www.instructables.com/id/Easy-Elephants-Toothpaste-Experiment-1/
Easy Elephants Toothpaste Experiment - More DIY How To Projects]]> https://cdn.instructables.com/FTP/FUEN/FS8O27F5/FTPFUENFS8O27F5.SQUARE2.jpg https://cdn.instructables.com/FTP/FUEN/FS8O27F5/FTPFUENFS8O27F5.SQUARE.jpg https://cdn.instructables.com/FTP/FUEN/FS8O27F5/FTPFUENFS8O27F5.SMALL.jpg sciencebob.com Fun With FoamFoam is fun! Check out this video to see our Fantastic Foamy Fountain in action. The experiment uses Hydrogen peroxide and dry yeast. Hydrogen peroxide is similar to water but it has an extra oxygen atom. This makes it more dangerous and only adults should handle the hydrogen peroxide.W...
By: sciencebob.com

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Fri, 13 Mar 2009 11:10:20 PDT
Cómo hacer una mini turbina de aire comprimido http://www.instructables.com/id/Cómo-hacer-una-mini-turbina-de-aire-comprimido/
Cómo hacer una mini turbina de aire comprimido - More DIY How To Projects]]> https://cdn.instructables.com/FLL/ALOG/HN6BLGLM/FLLALOGHN6BLGLM.SQUARE2.jpg https://cdn.instructables.com/FLL/ALOG/HN6BLGLM/FLLALOGHN6BLGLM.SQUARE.jpg https://cdn.instructables.com/FLL/ALOG/HN6BLGLM/FLLALOGHN6BLGLM.SMALL.jpg fozzy13 En caso de que aún no lo supieses, el aire comprimido es bastante genial. Con los sistemas mecánicos simples - bombas - energía puede ser almacenada y utilizada una cantidad increíble de aplicaciones. Lo que me gusta acerca del aire comprimido es lo fácil y accesible que es. Cualquier persona con un...
By: fozzy13

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Sun, 9 Mar 2014 11:15:29 PDT
THREE BOTTLES FOUNTAIN http://www.instructables.com/id/THREE-BOTTLE-FOUNTAIN/
THREE BOTTLES FOUNTAIN - More DIY How To Projects]]> https://cdn.instructables.com/FUL/055X/HV9HW0EQ/FUL055XHV9HW0EQ.SQUARE2.jpg https://cdn.instructables.com/FUL/055X/HV9HW0EQ/FUL055XHV9HW0EQ.SQUARE.jpg https://cdn.instructables.com/FUL/055X/HV9HW0EQ/FUL055XHV9HW0EQ.SMALL.jpg prayag nao It is amazing water fountain made by three water bottles.Things you will need......1)three plastic bottles.2)water tube.3)Glue.4)straw.5)Scissorand your BRAIN ;) Construstion :) Firstly apply glue on 2 lids and stick them back to back as shown in fig. now make hole in the lids and then take straw...
By: prayag nao

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Sun, 18 May 2014 09:32:20 PDT
How to make Agar http://www.instructables.com/id/How-to-make-Agar/
How to make Agar - More DIY How To Projects]]> https://cdn.instructables.com/FHM/HWO6/H1EN06JU/FHMHWO6H1EN06JU.SQUARE2.jpg https://cdn.instructables.com/FHM/HWO6/H1EN06JU/FHMHWO6H1EN06JU.SQUARE.jpg https://cdn.instructables.com/FHM/HWO6/H1EN06JU/FHMHWO6H1EN06JU.SMALL.jpg Singer Instruments How to make YPD Agar: This tutorial shows you how we make and pour 400ml of YPD Agar. http://www.singerinstruments.com Ingredients: 4g Yeast Extract 8g Bacterial Peptone 8g Glucose 6.4g Agar 400ml Water Antibiotic (varies depending on use) For an in-depth protocol on Preparing Yeast Plates click...
By: Singer Instruments

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Thu, 26 Apr 2012 06:21:18 PDT
Make a Rogowski coil http://www.instructables.com/id/Make-a-Rogowski-coil/
Make a Rogowski coil - More DIY How To Projects]]> https://cdn.instructables.com/FZC/AOKL/FSK1CB0I/FZCAOKLFSK1CB0I.SQUARE2.jpg https://cdn.instructables.com/FZC/AOKL/FSK1CB0I/FZCAOKLFSK1CB0I.SQUARE.jpg https://cdn.instructables.com/FZC/AOKL/FSK1CB0I/FZCAOKLFSK1CB0I.SMALL.jpg rp181 What does a rogowski coil do? A rogowski coil is a usefull method of measuring the current that passes through a conductor, AC power or pulse power. A rogowski coil is a kind of current transformer, depending on the current passing through the center, the voltage output varies. This gives you useful...
By: rp181

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Sat, 21 Mar 2009 07:26:47 PDT
Construye un motor de Corriente Continua http://www.instructables.com/id/Construye-un-motor-de-Corriente-Continua/
Construye un motor de Corriente Continua - More DIY How To Projects]]> https://cdn.instructables.com/FSQ/REJB/G50U5M9I/FSQREJBG50U5M9I.SQUARE2.jpg https://cdn.instructables.com/FSQ/REJB/G50U5M9I/FSQREJBG50U5M9I.SQUARE.jpg https://cdn.instructables.com/FSQ/REJB/G50U5M9I/FSQREJBG50U5M9I.SMALL.jpg javipz Este es mi primer instructable, ya que es la primera vez que construyo algo digno de ser publicado aquí, así que con toda humildad aceptaré cualquier crítica constructiva sobre esta publicación. El motor aquí descrito fue realizado como proyecto personal obligatorio para la asignatura "Máquinas elé...
By: javipz

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Sat, 30 Jan 2010 10:10:22 PST
How to Balance Chemical Equations http://www.instructables.com/id/How-to-Balance-Chemical-Equations/
How to Balance Chemical Equations - More DIY How To Projects]]> https://cdn.instructables.com/FTP/YO8C/IMF5Y40U/FTPYO8CIMF5Y40U.SQUARE2.jpg https://cdn.instructables.com/FTP/YO8C/IMF5Y40U/FTPYO8CIMF5Y40U.SQUARE.jpg https://cdn.instructables.com/FTP/YO8C/IMF5Y40U/FTPYO8CIMF5Y40U.SMALL.jpg kaylinaspy Materials Pencil or pen Sheet of paperTime Required 5-10 minutesExperience Basic understanding of atoms and inorganic molecules Basic multiplication skillsIntroductionChemical equations provide a formula for a chemical reaction between molecules that may include a single element or multiple elemen...
By: kaylinaspy

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Thu, 31 Mar 2016 03:54:04 PDT
Homemade Van De Graaff Generator http://www.instructables.com/id/Homemade-Van-De-Graaff-Generator/
Homemade Van De Graaff Generator - More DIY How To Projects]]> https://cdn.instructables.com/FNT/LBPW/G2WM21LA/FNTLBPWG2WM21LA.SQUARE2.jpg https://cdn.instructables.com/FNT/LBPW/G2WM21LA/FNTLBPWG2WM21LA.SQUARE.jpg https://cdn.instructables.com/FNT/LBPW/G2WM21LA/FNTLBPWG2WM21LA.SMALL.jpg toddjwood             The Van De Graaff Generator invented in 1929 by Robert J Van De Graaff uses a couple of rollers, combs, and a rubber (or nylon) belt to create a charge of a few thousand volts.  This charge is drawn off into the center of a hollow metal sphere, this last process takes advantage ...
By: toddjwood

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Tue, 23 Feb 2010 15:01:21 PST
Cigar Box Stir Plate http://www.instructables.com/id/Cigar-Box-Stir-Plate/
Cigar Box Stir Plate - More DIY How To Projects]]> https://cdn.instructables.com/F71/8A05/GE7LESVB/F718A05GE7LESVB.SQUARE2.jpg https://cdn.instructables.com/F71/8A05/GE7LESVB/F718A05GE7LESVB.SQUARE.jpg https://cdn.instructables.com/F71/8A05/GE7LESVB/F718A05GE7LESVB.SMALL.jpg completegeek I home brew my own beer, and one important tool for brewing is a stir plate. It keeps yeast in suspension and aerates the growth medium for maximum cell count. To purchase one of these stir plates is easily $100 bucks and is probably overkill for my purposes. For around $10 and a few salvaged materi...
By: completegeek

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Sun, 19 Sep 2010 12:57:47 PDT
Tesla Coils for Dummies http://www.instructables.com/id/Tesla-Coils-for-Dummies/
Tesla Coils for Dummies - More DIY How To Projects]]> https://cdn.instructables.com/F7A/1FF6/FT3K4OCH/F7A1FF6FT3K4OCH.SQUARE2.jpg https://cdn.instructables.com/F7A/1FF6/FT3K4OCH/F7A1FF6FT3K4OCH.SQUARE.jpg https://cdn.instructables.com/F7A/1FF6/FT3K4OCH/F7A1FF6FT3K4OCH.SMALL.jpg Xellers Recently, I managed to build a Tesla Coil using very little money (You can build this for under $20!!!), and spending very little time (only a couple hours!). This is not one of those television flyback drivers that are sometimes mistakenly called Tesla Coils, this is the real deal. Note that unlike...
By: Xellers

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Sun, 5 Apr 2009 19:10:40 PDT
Old SLA Battery Recovery http://www.instructables.com/id/Best-Sealed-Lead-Acid-Battery-Recovery/
Old SLA Battery Recovery - More DIY How To Projects]]> https://cdn.instructables.com/FLD/RU1N/IDOVPZBD/FLDRU1NIDOVPZBD.SQUARE2.jpg https://cdn.instructables.com/FLD/RU1N/IDOVPZBD/FLDRU1NIDOVPZBD.SQUARE.jpg https://cdn.instructables.com/FLD/RU1N/IDOVPZBD/FLDRU1NIDOVPZBD.SMALL.jpg Science Tower Any battery will die after some years,but you can give a 1up to it.Every thing is not permanent every thing will finish out after some time.You can use the things made from the big bang.Any thing is not vanishing its turning into a other substance that's the atomic theory. About Sealed Lead Acid B...
By: Science Tower

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Sun, 23 Aug 2015 21:56:45 PDT
Simple Algae Home CO2 Scrubber - Part II Algae Cultures and Breeding http://www.instructables.com/id/Simple-Algae-Home-CO2-Scrubber-Part-II-Culturing/
Simple Algae Home CO2 Scrubber - Part II Algae Cultures and Breeding - More DIY How To Projects]]> https://cdn.instructables.com/FNK/XD9L/FRL5KVKM/FNKXD9LFRL5KVKM.SQUARE2.jpg https://cdn.instructables.com/FNK/XD9L/FRL5KVKM/FNKXD9LFRL5KVKM.SQUARE.jpg https://cdn.instructables.com/FNK/XD9L/FRL5KVKM/FNKXD9LFRL5KVKM.SMALL.jpg egbertfitzwilly In Part I we built a simple home CO2 scrubber using algae. I'm writing this instructable to demonstrate how to culture and cultivate algae using more or less laboratory style procedures but substituting some readily available items for more traditional laboratory glassware.I encourage you to experim...
By: egbertfitzwilly

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Fri, 27 Feb 2009 22:43:58 PST
Cardboard Wind Tunnel http://www.instructables.com/id/Cardboard-Wind-Tunnel/
Cardboard Wind Tunnel - More DIY How To Projects]]> https://cdn.instructables.com/F0Q/VDMM/GPZAC0NJ/F0QVDMMGPZAC0NJ.SQUARE2.jpg https://cdn.instructables.com/F0Q/VDMM/GPZAC0NJ/F0QVDMMGPZAC0NJ.SQUARE.jpg https://cdn.instructables.com/F0Q/VDMM/GPZAC0NJ/F0QVDMMGPZAC0NJ.SMALL.jpg Goalieguy In this instructable, which happens to be my first, I will show you how to make a working wind tunnel using only a few easy-to-obtain materials. It only takes a few hours to make, and can generate high enough wind speeds to easily lift up a styrofoam airfoil. I built this to help me with my science ...
By: Goalieguy

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Sat, 16 Jul 2011 20:03:09 PDT
Burning Words Into Wood With Electricity http://www.instructables.com/id/Burning-Words-Into-Wood-With-Electricity/
Burning Words Into Wood With Electricity - More DIY How To Projects]]> https://cdn.instructables.com/FZG/VKLB/IPIYQ0ZM/FZGVKLBIPIYQ0ZM.SQUARE2.jpg https://cdn.instructables.com/FZG/VKLB/IPIYQ0ZM/FZGVKLBIPIYQ0ZM.SQUARE.jpg https://cdn.instructables.com/FZG/VKLB/IPIYQ0ZM/FZGVKLBIPIYQ0ZM.SMALL.jpg austiwawa Burn Words into Wood with Electricity - Lichtenberg FiguresA while back I uploaded an Instructable explaining how to burn Lichtenberg figures into wood using an old microwave transformer. Now after doing a bit of experimenting I came up with a simple way that you can actually burn words into wood by...
By: austiwawa

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Thu, 16 Jun 2016 21:02:48 PDT
How to make a Pocket Sized Colloidal Silver Generator. http://www.instructables.com/id/How-to-make-a-Pocket-Sized-Colloidal-Silver-Genera/
How to make a Pocket Sized Colloidal Silver Generator. - More DIY How To Projects]]> https://cdn.instructables.com/FL2/Y0TD/FTDBN1M9/FL2Y0TDFTDBN1M9.SQUARE2.jpg https://cdn.instructables.com/FL2/Y0TD/FTDBN1M9/FL2Y0TDFTDBN1M9.SQUARE.jpg https://cdn.instructables.com/FL2/Y0TD/FTDBN1M9/FL2Y0TDFTDBN1M9.SMALL.jpg strmrnnr First I would like to give a bit of material on colloidal silver, but due to the controversial nature of this substance, I am not allowed to state what is said about colloidal silver. Liability issues and the terms of service agreement. Thank You for pointing that out Kiteman. The only personal clai...
By: strmrnnr

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Sun, 12 Apr 2009 09:29:05 PDT
Convert Centigrade to Fahrenheit mentally http://www.instructables.com/id/Convert-Centigrade-to-Fahrenheit-mentally/
Convert Centigrade to Fahrenheit mentally - More DIY How To Projects]]> https://cdn.instructables.com/F0U/G4Z5/FNZAH6XB/F0UG4Z5FNZAH6XB.SQUARE2.jpg https://cdn.instructables.com/F0U/G4Z5/FNZAH6XB/F0UG4Z5FNZAH6XB.SQUARE.jpg https://cdn.instructables.com/F0U/G4Z5/FNZAH6XB/F0UG4Z5FNZAH6XB.SMALL.gif lone ranger My first Instructable.While on holiday in the Canary Islands we were kept informed of the time and temperature by a number of public digital displays. Naturally the temperature was in Centigrade. Fine, except that in spite of the UK going metric, atmospheric temperatures do not mean much to me unl...
By: lone ranger

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Fri, 7 Nov 2008 15:27:18 PST
Homemade X-ray Generator http://www.instructables.com/id/Home-built-X-ray-Source/
Homemade X-ray Generator - More DIY How To Projects]]> https://cdn.instructables.com/FQQ/X63S/HQSV2KCI/FQQX63SHQSV2KCI.SQUARE2.jpg https://cdn.instructables.com/FQQ/X63S/HQSV2KCI/FQQX63SHQSV2KCI.SQUARE.jpg https://cdn.instructables.com/FQQ/X63S/HQSV2KCI/FQQX63SHQSV2KCI.SMALL.jpg SpectrHz DISCLAIMER!!!: This project can be EXTREMELY dangerous if you do not know what you are doing, in the case of this system, the x-rays are really the least of the problem, assuming you have something to protect yourself with. However a flyback transformer can give you a nasty shock that could even kil...
By: SpectrHz

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Thu, 23 Jan 2014 23:12:10 PST
Tesla's Candlestick: Wireless Electricity http://www.instructables.com/id/Teslas-Candlestick-Wireless-Electricity/
Tesla's Candlestick: Wireless Electricity - More DIY How To Projects]]> https://cdn.instructables.com/FYF/Q1J7/GW4S342E/FYFQ1J7GW4S342E.SQUARE2.jpg https://cdn.instructables.com/FYF/Q1J7/GW4S342E/FYFQ1J7GW4S342E.SQUARE.jpg https://cdn.instructables.com/FYF/Q1J7/GW4S342E/FYFQ1J7GW4S342E.SMALL.jpg Mr. Apol Tesla coil Instructables are not uncommon--I've written one myself--but in the following Instructable I'd like to not only describe building a simple upright coil, but also suggest some easy ways to assemble Tesla system components. Sometimes the parts of a Tesla coil system are harder to get than...
By: Mr. Apol

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Wed, 14 Dec 2011 08:19:39 PST
adapt a dial-up phone to a modern phone jack http://www.instructables.com/id/adapt-a-dial-up-phone-to-a-modern-phone-jack/
adapt a dial-up phone to a modern phone jack - More DIY How To Projects]]> https://cdn.instructables.com/FUJ/1SCH/FDIY301O/FUJ1SCHFDIY301O.SQUARE2.jpg https://cdn.instructables.com/FUJ/1SCH/FDIY301O/FUJ1SCHFDIY301O.SQUARE.jpg https://cdn.instructables.com/FUJ/1SCH/FDIY301O/FUJ1SCHFDIY301O.SMALL.jpg tecno geek with this information, you'll be able to use an authentic dial-up phone in your house! cutting cut the male end off of a modern day phone cord. its really blurry cuz of the close up. wiring it up attach the wires as shown below (red-red yellow-yellow green-green) and leave the black one ha...
By: tecno geek

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Sat, 8 Mar 2008 18:05:11 PST
How To Dissect A Frog http://www.instructables.com/id/How-To-Dissect-A-Frog/
How To Dissect A Frog - More DIY How To Projects]]> https://cdn.instructables.com/FIT/SLS6/GH8AAS0H/FITSLS6GH8AAS0H.SQUARE2.jpg https://cdn.instructables.com/FIT/SLS6/GH8AAS0H/FITSLS6GH8AAS0H.SQUARE.jpg https://cdn.instructables.com/FIT/SLS6/GH8AAS0H/FITSLS6GH8AAS0H.SMALL.jpg jackthursby A video at http://youtu.be/yVguMzp25mU This Is less project and more a good working practice or operating procedure for the necrosis of a frog.  The frog depicted in this instructable (Xenopus laevis) is a pretty good muse as it has all the normal bells and or whistles, but in a larger format.  Whi...
By: jackthursby

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Wed, 16 Nov 2011 21:01:55 PST
Portable Sun Tracking Solar Panel With A Windup Clock Drive http://www.instructables.com/id/Portable-Sun-Tracking-Solar-Panel-With-A-Windup-Cl/
Portable Sun Tracking Solar Panel With A Windup Clock Drive - More DIY How To Projects]]> https://cdn.instructables.com/FE6/NXEA/FX5571BZ/FE6NXEAFX5571BZ.SQUARE2.jpg https://cdn.instructables.com/FE6/NXEA/FX5571BZ/FE6NXEAFX5571BZ.SQUARE.jpg https://cdn.instructables.com/FE6/NXEA/FX5571BZ/FE6NXEAFX5571BZ.SMALL.jpg shastalore I've just designed and built a homemade solar tracker than can be easily set to accurately align to the altitude of the sun (as it changes daily, with the seasons), and also faithfully track the sun, from sunrise to sunset. The tracking ability of the panel provides about 40% more power than a fixed...
By: shastalore

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Tue, 3 Feb 2009 22:11:04 PST
Metal Etching - How to Make a Man's Visiting Card http://www.instructables.com/id/Metal-Etching-How-to-Make-a-Mans-Visiting-Card/
Metal Etching - How to Make a Man's Visiting Card - More DIY How To Projects]]> https://cdn.instructables.com/F81/UNPS/J0WONMJK/F81UNPSJ0WONMJK.SQUARE2.jpg https://cdn.instructables.com/F81/UNPS/J0WONMJK/F81UNPSJ0WONMJK.SQUARE.jpg https://cdn.instructables.com/F81/UNPS/J0WONMJK/F81UNPSJ0WONMJK.SMALL.jpg BonnF Making a visiting card.If we don’t go into details and speak in an easy way etching is transfer of images from paper to metal. Etching is: -chemical -electrolysis In this article I’ll tell you about electrolysis as more interesting faster and safer method of etching.Making everything with your hands...
By: BonnF

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Thu, 30 Mar 2017 13:18:53 PDT
How to make a steam distiller from a teapot and some plumbing parts http://www.instructables.com/id/How-to-make-a-steam-distiller-from-a-teapot-and-so/
How to make a steam distiller from a teapot and some plumbing parts - More DIY How To Projects]]> https://cdn.instructables.com/FSR/UF0I/FS8RCNTD/FSRUF0IFS8RCNTD.SQUARE2.jpg https://cdn.instructables.com/FSR/UF0I/FS8RCNTD/FSRUF0IFS8RCNTD.SQUARE.jpg https://cdn.instructables.com/FSR/UF0I/FS8RCNTD/FSRUF0IFS8RCNTD.SMALL.jpg fearofsquirrels This doesn't work very well, feel free to try to improve or elaborate on the idea. I think I'm going to get started on a copper based model next weekend.Why would you need a steam distiller?-Steam distillation is the main method of separating essential or volatile oils from plant material, however c...
By: fearofsquirrels

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Sun, 15 Mar 2009 13:20:38 PDT
5 Cool Tricks Of Science At Home http://www.instructables.com/id/5-Cool-Tricks-of-Science-at-Home/
5 Cool Tricks Of Science At Home - More DIY How To Projects]]> https://cdn.instructables.com/FI7/UQW1/IRXPXE7G/FI7UQW1IRXPXE7G.SQUARE2.jpg https://cdn.instructables.com/FI7/UQW1/IRXPXE7G/FI7UQW1IRXPXE7G.SQUARE.jpg https://cdn.instructables.com/FI7/UQW1/IRXPXE7G/FI7UQW1IRXPXE7G.SMALL.jpg inspecter gadget Science has to one of my biggest passions, and this instructable is about some of simple curiosities that I find interesting and that have been extensively researched by classical scholars all over the world from the when science was in its infancy to present day. All of these tricks of science can ...
By: inspecter gadget

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Mon, 15 Aug 2016 12:42:10 PDT
6' f8 Newtonian with Sled Focuser on EQ mount http://www.instructables.com/id/6-f8-Newtonian-with-Sled-Focuser-on-EQ-mount/
6' f8 Newtonian with Sled Focuser on EQ mount - More DIY How To Projects]]> https://cdn.instructables.com/FAI/LI48/IEFZUMRK/FAILI48IEFZUMRK.SQUARE2.jpg https://cdn.instructables.com/FAI/LI48/IEFZUMRK/FAILI48IEFZUMRK.SQUARE.jpg https://cdn.instructables.com/FAI/LI48/IEFZUMRK/FAILI48IEFZUMRK.SMALL.jpg Astrochef Here is a project of mine, an all-metal build of a 6" f8 telescope and mount. This scope was constructed from salvage, scrap and miscellaneous parts over last winter. This project is pretty far out there in terms of found parts, so I don't expect anyone to immediately set out to find identical parts...
By: Astrochef

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Fri, 11 Sep 2015 15:08:31 PDT
Classic Paper Airplane http://www.instructables.com/id/Classic-Paper-Airplane-1/
Classic Paper Airplane - More DIY How To Projects]]> https://cdn.instructables.com/FRD/4BCO/FD80BZVT/FRD4BCOFD80BZVT.SQUARE2.jpg https://cdn.instructables.com/FRD/4BCO/FD80BZVT/FRD4BCOFD80BZVT.SQUARE.jpg https://cdn.instructables.com/FRD/4BCO/FD80BZVT/FRD4BCOFD80BZVT.SMALL.jpg woofboy111 These are instructions for a classic paper airplane. It is very simple and easy to make, and I'm guessing most paper airplane builders already have experience with this design or a variation of this design. For those of you that are completely new to the concept of paper airplanes, where you fold ...
By: woofboy111

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Tue, 4 Mar 2008 15:59:34 PST
How to clean a laser pointer lens http://www.instructables.com/id/How-to-clean-a-laser-pointer-lens/
How to clean a laser pointer lens - More DIY How To Projects]]> https://cdn.instructables.com/FMM/E4V6/FCEIJ3BZ/FMME4V6FCEIJ3BZ.SQUARE2.jpg https://cdn.instructables.com/FMM/E4V6/FCEIJ3BZ/FMME4V6FCEIJ3BZ.SQUARE.jpg https://cdn.instructables.com/FMM/E4V6/FCEIJ3BZ/FMME4V6FCEIJ3BZ.SMALL.jpg grannybasher A very common problem with laser pointers and lasers in general that is easy to fix is dirty lens. I'll briefly explain the two safest and effective methods to clean laser pointer lens.The equipment used in these instructions areA Viper 95mW from Dragonlasers at http://www.dragonlasers.comA lenspen ...
By: grannybasher

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Sun, 10 Feb 2008 23:28:18 PST
Electricity generated from 2 wires stuck into the ground or dirt http://www.instructables.com/id/Electricity-generated-from-2-wires-stuck-into-the-/
Electricity generated from 2 wires stuck into the ground or dirt - More DIY How To Projects]]> https://cdn.instructables.com/FQK/GIL1/GLE1RQ64/FQKGIL1GLE1RQ64.SQUARE2.jpg https://cdn.instructables.com/FQK/GIL1/GLE1RQ64/FQKGIL1GLE1RQ64.SQUARE.jpg https://cdn.instructables.com/FQK/GIL1/GLE1RQ64/FQKGIL1GLE1RQ64.SMALL.jpg crrdlx There simply must be a better way to generate electricity. Or, to produce energy in any form for that matter. I stuck two wires into the ground and they generated 0.8 volts (1/2 a normal battery). Why can't this be used on a practical level?   Electricity was generated: 1. with poles 2. - 4. wi...
By: crrdlx

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Sat, 19 Mar 2011 10:00:01 PDT
Large Bore Vacuum Cannon http://www.instructables.com/id/Large-Bore-Vacuum-Cannon/
Large Bore Vacuum Cannon - More DIY How To Projects]]> https://cdn.instructables.com/FN0/ANW3/IZYGG34F/FN0ANW3IZYGG34F.SQUARE2.jpg https://cdn.instructables.com/FN0/ANW3/IZYGG34F/FN0ANW3IZYGG34F.SQUARE.jpg https://cdn.instructables.com/FN0/ANW3/IZYGG34F/FN0ANW3IZYGG34F.SMALL.jpg NightHawkInLight In this project I'll be building a 4 inch bore vacuum cannon. This sort of cannon can fire large projectiles at high speed, and requires no explosive fuel or compressed air tanks to do so. Instead, the weight of Earth's own atmosphere is the force responsible for accelerating the projectile. With a ...
By: NightHawkInLight

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Tue, 7 Mar 2017 12:55:27 PST
How to make a Plastic Bottle Barometer http://www.instructables.com/id/How-to-make-a-Plastic-Bottle-Barometer/
How to make a Plastic Bottle Barometer - More DIY How To Projects]]> https://cdn.instructables.com/FST/48IE/G0AMK0O7/FST48IEG0AMK0O7.SQUARE2.jpg https://cdn.instructables.com/FST/48IE/G0AMK0O7/FST48IEG0AMK0O7.SQUARE.jpg https://cdn.instructables.com/FST/48IE/G0AMK0O7/FST48IEG0AMK0O7.SMALL.jpg tmross4 This is an easy project and would make a great science experiment. Using a vacuum inside a plastic bottle with water in it, you can observe the changing air pressure with this simple barometer. Please note, this type of barometer only allows you to see if the air pressure is high or low. Supplies ...
By: tmross4

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Mon, 5 Oct 2009 09:21:16 PDT
REAL Ghost Detector http://www.instructables.com/id/REAL-Ghost-Detector/
REAL Ghost Detector - More DIY How To Projects]]> https://cdn.instructables.com/FXR/EIPM/IFCDE4B8/FXREIPMIFCDE4B8.SQUARE2.jpg https://cdn.instructables.com/FXR/EIPM/IFCDE4B8/FXREIPMIFCDE4B8.SQUARE.jpg https://cdn.instructables.com/FXR/EIPM/IFCDE4B8/FXREIPMIFCDE4B8.SMALL.jpg Gursimran Singh 425 I don't believe in supernatural things but after reading too many books and articles about the reality of ghost I came to know that ghost are not like they appear in horror movies! but actually it is a form of energy that gets converted after we die.As we know that energy can neither be made nor be ...
By: Gursimran Singh 425

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Sun, 4 Oct 2015 05:17:58 PDT
Creating Satellite Imagery - Landsat http://www.instructables.com/id/Creating-Satellite-Imagery-Landsat/
Creating Satellite Imagery - Landsat - More DIY How To Projects]]> https://cdn.instructables.com/FQR/5E6U/IZ6D4A4Y/FQR5E6UIZ6D4A4Y.SQUARE2.jpg https://cdn.instructables.com/FQR/5E6U/IZ6D4A4Y/FQR5E6UIZ6D4A4Y.SQUARE.jpg https://cdn.instructables.com/FQR/5E6U/IZ6D4A4Y/FQR5E6UIZ6D4A4Y.SMALL.jpg rjc287 IntroductionCreating satellite imagery is quite easy and really a lot of fun. You can see the world in a completely different way. Not to mention, some of those images make for a great desktop background! :)In this tutorial, we're going to focus on imagery from Landsat 8, a NASA (National Aeronaut...
By: rjc287

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Mon, 27 Feb 2017 08:30:58 PST
Storm Glass http://www.instructables.com/id/Storm-Glass/
Storm Glass - More DIY How To Projects]]> https://cdn.instructables.com/FQX/ADRW/IZ6CORHS/FQXADRWIZ6CORHS.SQUARE2.jpg https://cdn.instructables.com/FQX/ADRW/IZ6CORHS/FQXADRWIZ6CORHS.SQUARE.jpg https://cdn.instructables.com/FQX/ADRW/IZ6CORHS/FQXADRWIZ6CORHS.SMALL.jpg Jts37 Long ago, people believed that they could use a Storm Glass to predict the weather up to several days in advance simply by looking at the condition of the solution in the jar and matching it to a corresponding weather condition (as shown in the picture; jar conditions on the left, cooresponding weat...
By: Jts37

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Fri, 24 Feb 2017 15:38:26 PST
Making Ooglo: Luminescent Silicone Paint http://www.instructables.com/id/Making-Ooglo-Luminescent-Silicone-Paint/
Making Ooglo: Luminescent Silicone Paint - More DIY How To Projects]]> https://cdn.instructables.com/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SQUARE2.jpg https://cdn.instructables.com/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SQUARE.jpg https://cdn.instructables.com/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SMALL.jpg mikey77 Transform silicone caulk into silicone paint that glows in the dark all night. It is very sticky and can be painted onto almost anything, including wood, fabrics, glass, and metal. The intro pic shows a phosphorescent flashlight made out of a wineglass. It also shows a curved circuit board coated w...
By: mikey77

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Thu, 9 Dec 2010 19:31:58 PST
How to Convert PowerPoint to EPS files http://www.instructables.com/id/How-to-Convert-PowerPoint-to-EPS-files/
How to Convert PowerPoint to EPS files - More DIY How To Projects]]> https://cdn.instructables.com/FUQ/KO6O/FR122TJW/FUQKO6OFR122TJW.SQUARE2.jpg https://cdn.instructables.com/FUQ/KO6O/FR122TJW/FUQKO6OFR122TJW.SQUARE.jpg https://cdn.instructables.com/FUQ/KO6O/FR122TJW/FUQKO6OFR122TJW.SMALL.jpg blakeredfield This method works with pretty much anything from a Microsoft suite that you might want to print out and use in a LaTeX document. I really want to make a long story short on this one, if at all possible. If you're reading this, then you have been troubled for long enough, so read on:I've been trying ...
By: blakeredfield

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Wed, 11 Feb 2009 06:08:23 PST
How to Pipette http://www.instructables.com/id/How-to-Pipette/
How to Pipette - More DIY How To Projects]]> https://cdn.instructables.com/FYJ/YX10/HUK2CU2M/FYJYX10HUK2CU2M.SQUARE2.jpg https://cdn.instructables.com/FYJ/YX10/HUK2CU2M/FYJYX10HUK2CU2M.SQUARE.jpg https://cdn.instructables.com/FYJ/YX10/HUK2CU2M/FYJYX10HUK2CU2M.SMALL.jpg sef13 Using a pipette is an essential part of working in a science laboratory. Pipettes, specifically micro-pipettes, are used for accurately measuring and transferring small amounts of solutions from on container to another. This is useful when creating a dilution series, plating cell samples. etc. Alth...
By: sef13

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Mon, 28 Apr 2014 22:32:39 PDT
Purification of Copper Sulfate http://www.instructables.com/id/Purification-of-Copper-Sulfate/
Purification of Copper Sulfate - More DIY How To Projects]]> https://cdn.instructables.com/FG5/CEBT/GXUZMYH6/FG5CEBTGXUZMYH6.SQUARE2.jpg https://cdn.instructables.com/FG5/CEBT/GXUZMYH6/FG5CEBTGXUZMYH6.SQUARE.jpg https://cdn.instructables.com/FG5/CEBT/GXUZMYH6/FG5CEBTGXUZMYH6.SMALL.jpg nurdee1 In this instructable I am going to show you how to purify copper sulfate. The reason that I am doing this is because the type you get at the hardware store for cleaning drains has a fair amount of impurities in it. The stuff I got has about two percent impurities in it. This may not seem like very m...
By: nurdee1

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Mon, 30 Jan 2012 17:57:34 PST
Water Rocket Bottle Splicing http://www.instructables.com/id/Water-Rocket-Bottle-Splicing/
Water Rocket Bottle Splicing - More DIY How To Projects]]> https://cdn.instructables.com/FAN/P767/GKJF8PC9/FANP767GKJF8PC9.SQUARE2.jpg https://cdn.instructables.com/FAN/P767/GKJF8PC9/FANP767GKJF8PC9.SQUARE.jpg https://cdn.instructables.com/FAN/P767/GKJF8PC9/FANP767GKJF8PC9.SMALL.jpg air.command Introduction This tutorial describes how to splice two bottles together when you only have bottles of the same size. Splicing bottles allows you to create larger capacity and longer water rockets. Although this tutorial shows how to splice 2 liter bottles the same technique can be applied to other ...
By: air.command

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Fri, 25 Feb 2011 00:17:51 PST
LED Polarity Tester http://www.instructables.com/id/LED-Polarity-Tester/
LED Polarity Tester - More DIY How To Projects]]> https://cdn.instructables.com/FPB/EG4N/FK8FVU92/FPBEG4NFK8FVU92.SQUARE2.jpg https://cdn.instructables.com/FPB/EG4N/FK8FVU92/FPBEG4NFK8FVU92.SQUARE.jpg https://cdn.instructables.com/FPB/EG4N/FK8FVU92/FPBEG4NFK8FVU92.SMALL.jpg viacin Ever soldered a LED into your project backwards? It can really mess up a good day! If you don't know, LED's have a positive side and a negative side, and will only light up when wired correctly. Most LED's have one longer lead to indicate the polarity, but not all. Here's a simple solution to find...
By: viacin

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Sat, 23 Aug 2008 15:33:24 PDT
10 minute trash/garbage/bin bag hot air balloons http://www.instructables.com/id/10-minute-trash-bag-hot-air-balloons/
10 minute trash/garbage/bin bag hot air balloons - More DIY How To Projects]]> https://cdn.instructables.com/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SQUARE2.jpg https://cdn.instructables.com/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SQUARE.jpg https://cdn.instructables.com/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SMALL.jpg tim_n Rain fire from the sky with this mockery of a Chinese balloon! This instructable requires: - A couple of meters of incredibly thin wire. - Cheapest trash bag/bin bag liner you can find (these are the sort of bags bin men hate as they split if you look at them funny) - A couple of balls of cotton woo...
By: tim_n

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Mon, 8 Feb 2010 11:47:39 PST
High Voltage Power Supply from Laser Printer http://www.instructables.com/id/High-Voltage-Power-Supply-from-Laser-Printer/
High Voltage Power Supply from Laser Printer - More DIY How To Projects]]> https://cdn.instructables.com/FSD/HZ8E/HRBN9Y3R/FSDHZ8EHRBN9Y3R.SQUARE2.jpg https://cdn.instructables.com/FSD/HZ8E/HRBN9Y3R/FSDHZ8EHRBN9Y3R.SQUARE.jpg https://cdn.instructables.com/FSD/HZ8E/HRBN9Y3R/FSDHZ8EHRBN9Y3R.SMALL.jpg bobyong808 Laser Printers are treasure troves of electronic goodies from gears to lasers to high voltage power supplies. High voltage is required in laser printing to create electrostatic charges to determine where the toner sticks, creating letters and images on paper. However, modern laser printers with thei...
By: bobyong808

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Thu, 6 Feb 2014 05:28:05 PST
How to make your own telescope mirror http://www.instructables.com/id/How-to-make-your-own-telescope-mirror/
How to make your own telescope mirror - More DIY How To Projects]]> https://cdn.instructables.com/FU6/EQ97/GQTM7CIU/FU6EQ97GQTM7CIU.SQUARE2.jpg https://cdn.instructables.com/FU6/EQ97/GQTM7CIU/FU6EQ97GQTM7CIU.SQUARE.jpg https://cdn.instructables.com/FU6/EQ97/GQTM7CIU/FU6EQ97GQTM7CIU.SMALL.jpg nightstang [Fig 1] This is a large piece of glass a woman off Craigslist gave me. It was 40"x40" and 0.75" thick. Its what I decided to use to make the mirror. Cutting it into smaller sections can be difficult but scoring it with a glass cutter and tapping the line with a hammer will generally give you a good ...
By: nightstang

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Tue, 2 Aug 2011 18:55:43 PDT
Double-slit Interference Experiment http://www.instructables.com/id/Double-slit-Interference-Experiment/
Double-slit Interference Experiment - More DIY How To Projects]]> https://cdn.instructables.com/FQ7/YJJR/FNNJYCHK/FQ7YJJRFNNJYCHK.SQUARE2.jpg https://cdn.instructables.com/FQ7/YJJR/FNNJYCHK/FQ7YJJRFNNJYCHK.SQUARE.jpg https://cdn.instructables.com/FQ7/YJJR/FNNJYCHK/FQ7YJJRFNNJYCHK.SMALL.jpg kelseymh A classic experiment to demonstrate the wave nature of light involves double-slit interference. Running the same experiment with a source that outputs just one photon at a time can demonstrate one of the weird features of quantum-mechanics -- wave/particle duality.This Instructable uses a do-it-your...
By: kelseymh

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Tue, 3 Nov 2009 23:09:19 PST
LED Pulse Sensor (PPG) for Arduino http://www.instructables.com/id/LED-Pulse-Sensor-PPG-for-Arduino/
LED Pulse Sensor (PPG) for Arduino - More DIY How To Projects]]> https://cdn.instructables.com/F0A/E8UT/I4SCDW2U/F0AE8UTI4SCDW2U.SQUARE2.jpg https://cdn.instructables.com/F0A/E8UT/I4SCDW2U/F0AE8UTI4SCDW2U.SQUARE.jpg https://cdn.instructables.com/F0A/E8UT/I4SCDW2U/F0AE8UTI4SCDW2U.SMALL.jpg Marc_Escobaem Within this Instructable i will show you, how to implement a simple PPG (photoplethysmogram) sensor for arduino. This device uses infrared light to measure you pulse. You may know this technique from the fingertip pulse sensors in hospitals. This techniques gets more and more important again in wear...
By: Marc_Escobaem

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Sun, 11 Jan 2015 09:28:54 PST
How to Make Ammonium Nitrate http://www.instructables.com/id/How-to-Make-Ammonium-Nitrate/
How to Make Ammonium Nitrate - More DIY How To Projects]]> https://cdn.instructables.com/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SQUARE2.jpg https://cdn.instructables.com/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SQUARE.jpg https://cdn.instructables.com/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SMALL.gif NurdRage In this video we make ammonium nitrate from various off-the-shelf chemicals. Note: This is not cheaper than buying it directly, once again our objective is to explore the chemistry. Warning: The chemicals are corrosive and ammonia has a horrible smell, work outside or in a fumehood and wear gloves...
By: NurdRage

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Sat, 24 Apr 2010 18:42:31 PDT
How to galvanize metal (for rust protection) http://www.instructables.com/id/How-to-galvanize-metal-for-rust-protection/
How to galvanize metal (for rust protection) - More DIY How To Projects]]> https://cdn.instructables.com/F48/BQPJ/G9S0ZQ2S/F48BQPJG9S0ZQ2S.SQUARE2.jpg https://cdn.instructables.com/F48/BQPJ/G9S0ZQ2S/F48BQPJG9S0ZQ2S.SQUARE.jpg https://cdn.instructables.com/F48/BQPJ/G9S0ZQ2S/F48BQPJG9S0ZQ2S.SMALL.jpg NurdRage We show you how to galvanize metal objects to protect them rust. First we get 30g of zinc sulfate and dissolve it into 100mL of water. Zinc sulfate was made back in our video on making a copper sulfate and zinc battery: http://www.youtube.com/watch?v=Id3tL2iI0Vw Then connect the item you want ...
By: NurdRage

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Mon, 31 May 2010 17:56:35 PDT
Model Rocket Launch Controller http://www.instructables.com/id/Model-Rocket-Launch-Controller/
Model Rocket Launch Controller - More DIY How To Projects]]> https://cdn.instructables.com/FHQ/GN7A/FTY4CHCN/FHQGN7AFTY4CHCN.SQUARE2.jpg https://cdn.instructables.com/FHQ/GN7A/FTY4CHCN/FHQGN7AFTY4CHCN.SQUARE.jpg https://cdn.instructables.com/FHQ/GN7A/FTY4CHCN/FHQGN7AFTY4CHCN.SMALL.jpg fennecfanatic Two weeks ago, I walked into physics lab to see the lab tech drawing a circuit diagram on the board. It rapidly became clear that this diagram was for a launch controller for model rockets. Apparently my physics professor had built one, and we were about to use it to set off rockets.After the ensuin...
By: fennecfanatic

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Mon, 27 Apr 2009 00:22:14 PDT
Speedy Gonzales: How to Make a Mousetrap Racecar http://www.instructables.com/id/Speedy-Gonzales-How-to-Make-a-Mousetrap-Racecar/
Speedy Gonzales: How to Make a Mousetrap Racecar - More DIY How To Projects]]> https://cdn.instructables.com/FVJ/1FVK/FB7FPPEV/FVJ1FVKFB7FPPEV.SQUARE2.jpg https://cdn.instructables.com/FVJ/1FVK/FB7FPPEV/FVJ1FVKFB7FPPEV.SQUARE.jpg https://cdn.instructables.com/FVJ/1FVK/FB7FPPEV/FVJ1FVKFB7FPPEV.SMALL.jpg Labot2001 Oh, what better a way to start off the new semester than by building a racecar? Why, building a racecar using a mousetrap, of course!In this Instructable, I will not only show you how to build a mousetrap car, but also some tips and tricks that I learned in my own building process.Back off, PETA. No...
By: Labot2001

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Mon, 14 Jan 2008 17:55:02 PST