http://www.instructables.com Thu, 23 May 2013 02:45:44 PDT BLOX v1.01 http://www.instructables.com/id/DIY-Astronomy-Flashlight/
DIY Astronomy Flashlight - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FI2/1D2B/H6734WQB/FI21D2BH6734WQB.SQUARE2.jpg http://www.instructables.com/files/deriv/FI2/1D2B/H6734WQB/FI21D2BH6734WQB.SQUARE.jpg http://www.instructables.com/files/deriv/FI2/1D2B/H6734WQB/FI21D2BH6734WQB.SMALL.jpg Bot1398 While stuyding astronomy charts you don't want to ruin your night vision with those white lights so here is simple flashlight which will preserve your night vision.Our astronomy flashlight uses red LED's instead of white which will help you to preserve your night vision , it is rechargable and you c...
By: Bot1398

Continue Reading »]]> Wed, 29 Aug 2012 22:17:33 PDT http://www.instructables.com/id/Casting-a-Large-Light-Weight-Telescope-Mirror-fro/
Casting a Large, Light-Weight Telescope Mirror from Recycled Glass - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FPT/P5LI/H2TJ4MD1/FPTP5LIH2TJ4MD1.SQUARE2.jpg http://www.instructables.com/files/deriv/FPT/P5LI/H2TJ4MD1/FPTP5LIH2TJ4MD1.SQUARE.jpg http://www.instructables.com/files/deriv/FPT/P5LI/H2TJ4MD1/FPTP5LIH2TJ4MD1.SMALL.jpg mdavis19 The first photo below shows a 12.5 inch diameter, 1.5 inch thick, telescope mirror blank, made from recycled glass, that has been lightened by casting the mirror in a mold that made lots of hexagon-shaped pockets in the back of the mirror. This is the story of how I did it. Why light-weight mirror ...
By: mdavis19

Continue Reading »]]> Mon, 4 Jun 2012 16:56:08 PDT http://www.instructables.com/id/How-to-View-an-Eclipse-Sunspots-or-the-Transit-o/
How to View a Solar Eclipse, Sunspots, or the Transit of Venus! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FOR/GKGO/H9G0SYNG/FORGKGOH9G0SYNG.SQUARE2.jpg http://www.instructables.com/files/deriv/FOR/GKGO/H9G0SYNG/FORGKGOH9G0SYNG.SQUARE.jpg http://www.instructables.com/files/deriv/FOR/GKGO/H9G0SYNG/FORGKGOH9G0SYNG.SMALL.jpg depotdevoid Viewing an eclipse or other solar event is great fun, and an excellent way to involve kids in learning about science.  I'm writing this on the evening of May 20, 2012, just after a great annular (ring) solar eclipse, and in anticipation of of the June 5/6 transit of Venus.  My daughter and I watche...
By: depotdevoid

Continue Reading »]]> Sun, 20 May 2012 22:53:56 PDT http://www.instructables.com/id/12-improvements-for-a-cheap-telescope/
12 improvements for a cheap telescope - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FEV/7DGR/GYVDIU4E/FEV7DGRGYVDIU4E.SQUARE2.jpg http://www.instructables.com/files/deriv/FEV/7DGR/GYVDIU4E/FEV7DGRGYVDIU4E.SQUARE.jpg http://www.instructables.com/files/deriv/FEV/7DGR/GYVDIU4E/FEV7DGRGYVDIU4E.SMALL.jpg tholopotami A cheap telescope can discourage anyone from pursuing the astronomy hobby. Usually the effect of lowering the price of a scope is associated with compromising its performance. In many cases  the vendor includes additional features that intend to attract the buyer and have no real value.  The point ...
By: tholopotami

Continue Reading »]]> Mon, 27 Feb 2012 03:12:14 PST http://www.instructables.com/id/Poor-Man-s-Radio-Telescope/
Poor Man's Radio Telescope - More DIY How To Projects]]> http://cdn.instructables.com/FQV/74FR/OOFEYVZDVH7/FQV74FROOFEYVZDVH7.SQUARE2.jpg http://cdn.instructables.com/FQV/74FR/OOFEYVZDVH7/FQV74FROOFEYVZDVH7.SQUARE.jpg http://cdn.instructables.com/FQV/74FR/OOFEYVZDVH7/FQV74FROOFEYVZDVH7.SMALL.jpg z0rb A way to peer into the radiosky using little more then junk found on the side of the road. Remembering back to my 10th birthday. I recall receiving a book on outer space. I believe it was published by National Geographic. This was by far my most prized book in my somewhat limited collection of t...
By: z0rb

Continue Reading »]]> Fri, 9 Mar 2007 13:04:03 PST http://www.instructables.com/id/Your-own-terrestrial-planet-without-atmosphere/
Your own terrestrial planet without atmosphere - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FVL/EBAS/GS045NMF/FVLEBASGS045NMF.SQUARE2.jpg http://www.instructables.com/files/deriv/FVL/EBAS/GS045NMF/FVLEBASGS045NMF.SQUARE.jpg http://www.instructables.com/files/deriv/FVL/EBAS/GS045NMF/FVLEBASGS045NMF.SMALL.jpg AlphaRomeo This a simple classroom or science at home project that has a good edutainment value even at primary school level. The Science Part Mercury, Venus, Earth and Mars are called terrestrial planets as these have 'land' to stand-on.  We may also add moon to the list. Lunar and Mervury surfaces are highl...
By: AlphaRomeo

Continue Reading »]]> Wed, 31 Aug 2011 23:39:30 PDT http://www.instructables.com/id/Large-driveway-sidewalk-or-garden-sundial/
Large driveway, patio or garden sundial - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FFQ/3WK7/GRFNDVAZ/FFQ3WK7GRFNDVAZ.SQUARE2.jpg http://www.instructables.com/files/deriv/FFQ/3WK7/GRFNDVAZ/FFQ3WK7GRFNDVAZ.SQUARE.jpg http://www.instructables.com/files/deriv/FFQ/3WK7/GRFNDVAZ/FFQ3WK7GRFNDVAZ.SMALL.jpg arpruss This is a design for analemmatic sundials, large or small, with elliptical dials.  The one I made with my son is twelve feet across, drawn in sidewalk chalk on a level part of our driveway, and you check the time by standing in the spot corresponding to the date and seeing where the middle of your o...
By: arpruss

Continue Reading »]]> Thu, 18 Aug 2011 21:28:53 PDT http://www.instructables.com/id/Backyard-Personal-Observatory/
Backyard Personal Observatory - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FNA/U2SX/GR0E76KA/FNAU2SXGR0E76KA.SQUARE2.jpg http://www.instructables.com/files/deriv/FNA/U2SX/GR0E76KA/FNAU2SXGR0E76KA.SQUARE.jpg http://www.instructables.com/files/deriv/FNA/U2SX/GR0E76KA/FNAU2SXGR0E76KA.SMALL.jpg maewert This instructable shows you how you can build a low cost personal astronomical observatory in your back yard. Materials and Tools Materials: 1 Rubbermaid 7 foot x 7 foot shed such as: http://www.rubbermaid.com/Category/Pages/ProductDetail.aspx?Prod_ID=RP091372 Square stock steel, 100 feet 1.5 in...
By: maewert

Continue Reading »]]> Sat, 6 Aug 2011 20:55:07 PDT http://www.instructables.com/id/Airline-portable-8-Dobsonian-telescope/
Airline-portable 8" Dobsonian telescope - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FCI/ZU28/GQX1VM1Q/FCIZU28GQX1VM1Q.SQUARE2.jpg http://www.instructables.com/files/deriv/FCI/ZU28/GQX1VM1Q/FCIZU28GQX1VM1Q.SQUARE.jpg http://www.instructables.com/files/deriv/FCI/ZU28/GQX1VM1Q/FCIZU28GQX1VM1Q.SMALL.jpg arpruss I wanted a telescope I could take on a plane but that would have a usable aperture and wouldn't be too expensive.  The resulting scope weighs about 16.5 lbs, with a mirror box that fits in a backpack and that has about half of the weight, and with all the other pieces fitting in luggage, along with ...
By: arpruss

Continue Reading »]]> Thu, 4 Aug 2011 20:32:45 PDT http://www.instructables.com/id/How-to-Get-Started-in-Amateur-Astronomy/
How to Get Started in Amateur Astronomy - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZD/HGZD/H9G0SYIN/FZDHGZDH9G0SYIN.SQUARE2.jpg http://www.instructables.com/files/deriv/FZD/HGZD/H9G0SYIN/FZDHGZDH9G0SYIN.SQUARE.jpg http://www.instructables.com/files/deriv/FZD/HGZD/H9G0SYIN/FZDHGZDH9G0SYIN.SMALL.jpg depotdevoid Astronomy is the study of the stars, planets, and other celestial objects that populate the sky.  It is an endlessly fascinating field, the oldest of the natural sciences, and one of the few areas of science that amateurs can directly assist the professionals.  It is open and accessible for any leve...
By: depotdevoid

Continue Reading »]]> Sun, 31 Jul 2011 12:07:16 PDT http://www.instructables.com/id/How-to-find-Polaris-the-North-Star/
How to find 'Polaris' - the North Star - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FBS/B4ZV/GQ3FZM0D/FBSB4ZVGQ3FZM0D.SQUARE2.jpg http://www.instructables.com/files/deriv/FBS/B4ZV/GQ3FZM0D/FBSB4ZVGQ3FZM0D.SQUARE.jpg http://www.instructables.com/files/deriv/FBS/B4ZV/GQ3FZM0D/FBSB4ZVGQ3FZM0D.SMALL.jpg ATTILAtheHUNgry Do you live in a big city permeated with light pollution?  Never been camping?  Or has just no one ever pointed it out to you? Polaris, the North Star, is an important navigational star because its position in the sky is almost exactly (within a few degrees) lined up with the rotational axis of the...
By: ATTILAtheHUNgry

Continue Reading »]]> Thu, 14 Jul 2011 06:15:25 PDT http://www.instructables.com/id/Homemade-125-inch-Dobsonian-Telescope/
Homemade 12.5 inch Dobsonian Telescope - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FMK/PKPG/GP7IHR8I/FMKPKPGGP7IHR8I.SQUARE2.jpg http://www.instructables.com/files/deriv/FMK/PKPG/GP7IHR8I/FMKPKPGGP7IHR8I.SQUARE.jpg http://www.instructables.com/files/deriv/FMK/PKPG/GP7IHR8I/FMKPKPGGP7IHR8I.SMALL.jpg nikon20 How to build a 12.5 inch closed tube Dobsonian telescope. I began building it in the spring of 2008, but the bulk of the work was done in July of 2008 with first light occurring on July 25. This Instructable describe the planning, design, and parts of the scope, as well as the process of building...
By: nikon20

Continue Reading »]]> Sat, 9 Jul 2011 11:55:03 PDT http://www.instructables.com/id/Astronomy-Flashlight/
Astronomy Flashlight - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FNI/61V7/GC4G9C1L/FNI61V7GC4G9C1L.SQUARE2.jpg http://www.instructables.com/files/deriv/FNI/61V7/GC4G9C1L/FNI61V7GC4G9C1L.SQUARE.jpg http://www.instructables.com/files/deriv/FNI/61V7/GC4G9C1L/FNI61V7GC4G9C1L.SMALL.jpg frenzy For certain applications a red lensed flashlight can come in very useful. If you are looking at star charts or trying to get around the woods and want to not ruin your night vision, these are perfect. This instructable makes one from parts you can find very easily and cheaply. Supplies For this...
By: frenzy

Continue Reading »]]> Mon, 2 Aug 2010 15:27:20 PDT http://www.instructables.com/id/Make-Your-Own-Black-Hole/
Make Your Own: Black Hole Fabricator!! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F5Z/I8LA/FZQ1GQO9/F5ZI8LAFZQ1GQO9.SQUARE2.jpg http://www.instructables.com/files/deriv/F5Z/I8LA/FZQ1GQO9/F5ZI8LAFZQ1GQO9.SQUARE.jpg http://www.instructables.com/files/deriv/F5Z/I8LA/FZQ1GQO9/F5ZI8LAFZQ1GQO9.SMALL.jpg 007dna This will tell you how to make a real, down to earth black hole. I swear this is a real instructable! Now, if you have the money, I invite you to build this project. Guaranteed that the FBI doesn't blow your house up first. So, I will also tell you that, because I haven't the money, I have not exact...
By: 007dna

Continue Reading »]]> Mon, 21 Sep 2009 13:30:27 PDT http://www.instructables.com/id/40-USB-super-telescope-easy-to-make-sees-crater/
40$ USB super telescope, easy to make, sees craters on the moon - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZL/Z3UG/FCEIJ5GG/FZLZ3UGFCEIJ5GG.SQUARE2.jpg http://www.instructables.com/files/deriv/FZL/Z3UG/FCEIJ5GG/FZLZ3UGFCEIJ5GG.SQUARE.jpg http://www.instructables.com/files/deriv/FZL/Z3UG/FCEIJ5GG/FZLZ3UGFCEIJ5GG.SMALL.jpg hanzablast Turn an old telelens and a webcam into a powerfull telescope that is capable of seeing craters on the moon. Next to the webcam and tele lens all you need are some standard pvc plumbing materials (pipes, diameter adapters and endcaps) Needed materials Here's what you need: 1. A webcam (I used a q...
By: hanzablast

Continue Reading »]]> Mon, 11 Feb 2008 10:22:55 PST