Invisible Comments, now with video.

I've just noticed - if you enclose a comment in , they don't show up on your "comments" page.  You just get an empty space with the name of the person who posted it. I guess the system thinks that the contents of are supposed to be code of some sort, but it's an odd effect anyway. As an aside - what is the best you can do with the image below? (The second version is a PNG file, just in case you'd prefer.) Lemonie's video...

Posted by Kiteman 8 years ago


invisible comments

Several family members are now Instructable members so occasionally we like to check and see what each other has said about an Instructable. On every occasions when we go to the Instructable comment section we can not find each other's comments. To double check we swapped member names and passwords but as feared we could only see the comments for the member names we were logged under. Ironically we can see all (?) comments by other members. I logged this as a bug and sent several emails to info@instructables.com but nothing, no response and no reply. Has anyone else experienced this trouble or have any idea of the cause?

Posted by thinkahead 10 years ago


Comment going down the memory hole....

As has been reported by other users, I occasionally end up posting "invisible" comments, either at the top level, or as replies to someone else.  These comments are visible to me when I view the forum topic, Question, or Instructable (and the comment count includes them in that view!).  However, the forum browsing page doesn't show them (neither as "last post" nor in the count), and they are not visible to any other users. My most recent example is in BIGHAIRYDUDE's bug report. I posted one comment at 4:18 pm (CAGESVXGGMMFD6M), and another at 5:08 pm (CTRYNTKGGMMFDBI). Those strings are the commentId values, which I can see on the page when I do "view source"! I constructed the URLs by hand. If I use those links in another session where I'm not logged in, they don't work. But if I log in there (on Safari, so there's no chance of cookie or cache confusion), then my comments appear! This behaviour is unpredictable. It seems to happen once or twice a week. When it does, the particular forum topic or whatever is affected permanently (i.e., any comment I try to post is invisible), but other topics are not affected at all. I know that's going to make it hard to isolate and fix, but I'm hoping that the IDs might be of some help...

Posted by kelseymh 7 years ago


I can't see my instructable

Last night I published this instructable, but I can not see it in ALL RECENT option. However, it has a comment. I don't understand... What worries me is that when you solve the problem, my instructable will appear "backward" or as posted several hours ago, and many people will not see it, for that reason.

Posted by rimar2000 6 years ago


Invisible cars.

Two approaches to making cars "invisible" - change the look of the car, and change the nature of the car.Art car and wire car via Science Forums.

Posted by Kiteman 9 years ago


Invisible concrete cube

This concrete cube made by Daniel Franke and Markus Kison has the amazing ability to turn invisible. Thanks to eye-tracking and a video projector for each face of the cube, the cube has the view behind it projected onto its faces. The result is like looking through a glowing window instead of a cube. You can see the effect in the video. It's not entirely smooth yet, but a very cool idea. Augmented Reality Renders Concrete Block Invisible Related: Death Becomes Her Halloween Costume photo: Durchsehen, Exp. 01 (augmented perspective) by Markus Kison, on Flickr

Posted by fungus amungus 8 years ago


The Future of Invisibility

It is reported that a team of researches at the University of California, Berkeley claim to be on the doorstep of invisibility. Using a special type of metamaterial they are bending electromagnetic waves and negatively refracting visible light. Their ultimate goal is to render entire objects invisible to the naked eye. After reading this, I conducted some invisibility experiments of my own. Based on my initial experiments with invisibility cloaking, I must concede that we are not quite there yet, but are getting close (see image).For more information, read the full news report

Posted by randofo 10 years ago


How to make florescent ink?

I have Googled and searched Wiki on how to make fluorescent (ultraviolet) inks. I want to know how to make them. I dont want th lemon juice , corn starch, milk or other types of invisible inks. I want to make the stuff the glows under uv light. I searched using uv, ultraviolet, fluorescent inks but couldnt find anything other than the lemon juice and other types of "invisible" writing. Please help if you know where to find or if you know how to make fluorescent (ultraviolet) inks. You can email me at whitethatchpotentloins@yahoo.com I mean the inks that u can buy for handstampers and that are put in invisible ink markers. I want to make the stuff myself and not have to buy it off the internet.... So while yes there are alot of things that glow under UV, I want it in liquid form.

Posted by WhiteThatch 10 years ago


If I was invisible for a day I would...

Community lets just have some innocent fun ... what would you do if you were invisible for a day?

Posted by Eli Nich 5 years ago


Further Advances in Invisibility

As those of you who have been fervently following my posts for over a year know, last summer I was working on making myself invisible. While my the results of my experiment were lackluster, it appear that a man in China has nearly perfected the technique. He says his quest towards invisibility started in 2005 as a protest of the Chinese government who had shut down his art studio. You can see some of the results of his research here.

Posted by randofo 9 years ago


Invisible LINUX ?

"To Jim Zemlin you need no longer care about your operating system." Full story here... "You don't buy an operating system. You buy a gadget that runs a program. The gadget and its software are one unit. I call this Invisible Linux." - Posted by Dana Blankenhorn @ 2:57 am

Posted by Goodhart 9 years ago


Micro Invisible fence transmitter

I am looking to have a Micro transmitter for an invisible fence made. This will need to trigger the invisible fence shock collar when it gets within 2 feet. I have a dog with a shock collar that attacks a smaller, older dog in the house. I want a transmitter that will fit on the collar of the smaller dog, run off of batteries with a LED to show it is powered on. I have an extra receiver to test with, and i can send photos of the transmitter and what information i have. Willing to pay COD for delivery.

Posted by GGryphon 9 years ago


InVision LD 3D Printer Help

A 3D printer has been donated to my classroom for a few months, but we were not given any documentation on the printers use. I have looked online, but it is an older 3D printer and information is lacking. I thought I would see if anyone here had experience and could point me in the right direction. I have been to manufacturer's website but have had little luck since it is a legacy system. I have looked online but I cannot find a manual. If I could find a manual that would help greatly. It is an InVision LD 3D Printer, S/N 05JA1921 Thanks!

Posted by ehudwill 2 years ago


Chmistry buffs: IR invisible ink?

Hey all science-type people, I've seen invisible ink pens and things for sale that contain ink that show up in infrared, instead of ultraviolet light.  That's really appealing to me for a number of project ideas because digital cameras pick up IR exteremely well (especially with their filter removed). The problem is I think I'm going to want a lot of it, and those dumb little pens are crazily expensive. So any of you chemistry buffs out there have a secret formula I could make?  I'd prefer something invisible in regular light, but hey, whatever you've got. :) Thanks in advance for your help, -Kurt

Posted by PS118 7 years ago


Invisible Book Shelf

This is a variation on the Invisible Book Shelf that I did (but didn't document). It allows you to keep all your reading books while getting some use out of an old phone book.This book is a shelf, a "safe", and a mystery to those who haven't discovered the secret yet.The photos below will tell all (except the first.. I just wanted to show off one of my patches). Any questions, just ask.The total weight of the books on the "shelf" is: 19.8 lbs.

Posted by FrenchCrawler 11 years ago


Invisible Unpublished Instructables

It looks like, if you happen to save more than 10 unpublished instructables/slideshows, the unpublished page does not show the helpful little "1-10 of XX {Next}" information and button (like it does in the published section). If I add "&offset;=10" to the URL though it does take me to the correct page(s).

Posted by dragonvpm 9 years ago


Cisco AMP (How to bypass or make a file invisible)?

Hello, I'd like to know how to bypass Cisco AMP so I can use my VPN. I'd also like to ask how to bypass administrative restrictions on plugins so that I may install adblock plus to google chrome. Thank you to any responses.

Posted by NicholasG3 1 year ago


Awesome bookshelving system

I'm racking my brain on how to make something like this: http://studiomama.com/bookshelf.html. Anyone got any ideas?

Posted by trfierant 8 years ago


Homepage is F****d

Powerbook Mac 10.7.5 Safari Homepage loads without text entry fields (able to enter text but text is invisible) Search reveals no results

Posted by gegn 5 years ago


An Unhealthy Obsession With Magnets

Ever since i observed the attractive/repelling invisible force of the magnet i was interested in this mysterious action at a distance what compels the movement of metal the laws, the principles, wow electromagnetism cool stuff

Posted by eoosen 11 years ago


Indoor invisible pet fence idea - need help

I need to keep a cat out of a room that has a 12 foot wide opening. I was wondering if a strand of wire or a coil of wire could be installed under the carpet across the 12 foot opening such that when the cat, wearing a collar fitted with a magnet came close, a current change would be created in the wire or coil and an alarm could be generated that would scare the cat away? Would this work and if so, would someone like to help me make it happen? Thanks

Posted by in0v8 3 years ago


Make writing appear on a wall

We are having a party and I would love to make writing appear on a wall. Any suggestions? One thought is to have invisible UV paint and shine a black light on it.

Posted by abugslife99 5 years ago


Inkjet $$$ Ink. Why so expensive?

Whats the cost of inkjet ink? 1000/gal?  could somethin else be used? whats so special about the stuff? and could we run lemon juice thru for invisible ink?  or a UV  ink?  or foodcoloring?

Posted by Toga_Dan 3 years ago


Stuck in the Filters - unstick me?

My 'ible was published this weekend and seems to be in some kind of invisibility zone.  I can surf to it, but it is not showing up in any category or contest. https://www.instructables.com/id/No-Kill-No-Sew-fake-Book-Cover-for-Tablets-an/ Can someone give it a nudge?  Thank you much!

Posted by Bitsi 5 years ago


Bug while searching main page

Hello,  I am using Google Chrome 26.0.1410.43 m on Windows XP I was on the Home page trying to search when you type in the search bar the characters are invisible. They are only visible if you highlight them. Sorry if I am a little short to the point but I am half asleep.  Thanks Conrad

Posted by Pfarmkid 5 years ago


Patent Files: Method of exercising a cat (5,443,036)

PatentA method for inducing cats to exercise consists of directing a beam of invisible light produced by a hand-held laser apparatus onto the floor or wall or other opaque surface in the vicinity of the cat, then moving the laser so as to cause the bright pattern of light to move in an irregular way fascinating to cats, and to any other animal with a chase instinct.Discuss!

Posted by trebuchet03 10 years ago


PM with empty subject is not clickable

When someone sends a PM with empty subject, the you:inbox page lists the message, but the item is not clickable. Actually, looking at the HTML code reveals that there is a link, but it is invisible because the tag is empty: (In the above example, the message can be accessed by prepending the base url to the href attribute: https://www.instructables.com/you/inbox?view=X7N77DIGKTJO4PO) Suggested fix: when the subject is empty, emit something like: (No subject)

Posted by laxap 7 years ago


Instructables 2007 Data Dump

I've been analyzing some some year end Instructables data and posting about it in the blog. Check out:Top 50 Instructables of 2007 Ranked by Pageviews - 1. Invisible Book Shelf - 399,647 pageviewsTop 50 Instructables of 2007 Ranked by Number of Comments - 1. Laser Flashlight Hack!! - 1,229 commentsTop 50 Instructables of 2007 Ranked by Rating - 1. Invisible Book Shelf - 481 positive ratingsTop 50 Instructables Authors of 2007 Ranked by Number of Instructables - 1. trebuchet03 - 72 InstructablesTop 50 Instructables Commenters of 2007 Ranked by Number of Comments - 1. Mykhailo - 1373 comments on InstructablesTop 50 Instructables Commenters of 2007 Ranked by Number of Forum Comments - 1. Goodhart - 4168 forum commentsTop 50 Instructables Authors Ranked by Pageview Density - 1. dorxincandeland - 1 Instructable - 399,652 pageview densityTop 50 Forum Topics of 2007 Ranked by Number of Comments - 1. Random fun - 595

Posted by ewilhelm 10 years ago


A shameless plug!

Right, I've cut it fine on the deadline, so I'm giving my Invisible Costume Instructable a shameless plug here = got to get the view-count up somehow ;-)If you need any incentive to have a look, it's the costume I failed to make in time for the Hallowe'en contest. Go see what you nearly missed.Why are you still reading this? go, click, get my view-count up!

Posted by Kiteman 10 years ago


Header update

A change up top, and a bunch of cleanup under the hood!  We've been working on the header bit by bit to try and make it clearer without taking up too much page space.  I think it's going well... We've also been cleaning up code underneath, so please let us know by posting a bug category forum topic, if you find anything we broke.  Most of the invisible changes are javascript and CSS.

Posted by rachel 7 years ago


DIY Holiday Gift Ideas - The Best of Instructables on NHPR's Word of Mouth

Virginia Prescott of New Hampshire Public Radio's Word of Mouth interviewed me live during today's show, DIY Holiday Gift Ideas. You can listen to the interview on the NHPR's website. We discussed how Instructables started, The Best of Instructables, Marshmallow Shooters, The Invisible Bookshelf, and LED projects.More news and press about Instructables here.

Posted by ewilhelm 9 years ago


IR laser detector alarm

With the new Infrared laser pointers etc. there is no way to tell if light is on or not. I think there is a need for a IR laser light detector that is small enough to fit in your pocket and could be clipped to your shirt. If a IR laser was pointed in your direction the sensor would chirp or make a noise. I've noticed several places selling IR laser pointers. I think they are dangerous and very little use for them, since they are invisible. Anybody want to make one? If you do I want one.

Posted by paduckaartist 10 years ago


Funky wall treatments with paper and old books

Want to add a new look to your walls for cheap? Ruche has posted these tutorials for a few different effects. There's a flower wall made out of butcher paper, an old book turned into wallpaper, the quickest explanation of the invisible bookshelf I've ever seen, and even an antique paint treatment. Check out the link to see how they're done. DIY - Wall Decor from Ruche's Lookbook via Design*Sponge

Posted by fungus amungus 8 years ago


Feature Request: Sort Group Topics RECENT by default

As announced this morning by Rachel (and confirmed by me), it is now possible to create discussion topics within a Group.However, when we view a Group, those topics are presented in the order in which they were created, from OLDEST to newest. That means, for many Groups, the new topics are completely invisible to anyone visiting. There is no way to change that sort order from the Web interface.I would like to request that the "sort=RECENT" CGI argument be used by default for the presentation of Group topics, both on the Group page and also with the view all link. I have confirmed that adding this argument by hand to the URL has the expected effect.

Posted by kelseymh 9 years ago


How fast can you spin your Golf Ball?

I played around with some balls placed into the airstream of a little blower. Everything light enough just "danced" in the air like being hold on invisible strings. But not so much the golf ball! You would expect those dimples are good for reducing air friction but do they also offer stability in some cases by making the ball spin? Check this video I recorded while playing - to me it looks like with a proper nozzle there is even more speed possible. https://www.youtube.com/watch?v=014QkXuTL0o How fast can you make it spin?

Posted by Downunder35m 2 years ago


Search engine @ main page

Hi I'm using 1. a laptop, ubuntu 12.04 LTS, 2. Chrome vers. 36.0.1985.143 3-5. The last couple of days I haven't been able to use the big search engine at the main page with all its suggestions. As soon as I click the box to enter my search terms, I'm directly transported to whatever suggestion is coming up, such as beer or the alphabet. This was something I could do at the latest last week. The positive part is that I found the small one in the upper right corner after several years as a member. Got kind off invisible with the main one being so big. Keep up the ever so great job You're doing! Kind regards Oscar

Posted by Osquar 3 years ago


A sport coat that has hundreds of little lights sewn into it.

I once saw a local musician play the guitar and sing in a small venue. For one song, they dimmed the lights on the stage almost completely, and the sport coat he was wearing suddenly "switched on" and he had hundreds of tiny little light beads sewn into the jacket that you could not see before. They were not string lights, like for a Christmas tree. They seemed to be much more LED like, and bright, and most of all, small to the point of being invisible.  I hate to be a copy cat... but I want to make a jacket like this too. I do not care if it is portable. i.e. if I have to plug it in, that's fine. Anyone have any ideas for where I might start?

Posted by Dolmetscher007 4 years ago


Sandals made from billboard fabric

The barefoot trend keeps catching on. About half of the Instructables staff wears Vibram Five Fingers shoes and Eric has even run a marathon in a pair. But it's totally understandable that people would want some even cheaper alternatives, such as the invisible shoe. Now there's an even cheaper option coming along that's made out of billboard fabric. They're called Paper Feet sandals and are set to go on sale this summer for $5-$15. Now I'm a little dubious about the comfort of such shoes with some potentially sharp edges, but it's cool to see people constantly trying out new ideas. Hopefully this one turns out well. Paper-Feet: Sustainable Sandals that Don't Cost an Arm or a Leg

Posted by fungus amungus 8 years ago


More freebies for the Hallowe'en competition

OK, I have plans for the Hallowe'en competition, but not all are going to happen, mainly due to time and other commitments.These are vague outlines of my ideas. If you want more details, and are ready to try them out, PM me and I will pass details back to you.1. A ghost costume for a Lego man (low cost and difficulty, I just lack certain tools)2. An invisible hallowe'en costume (Cost $10-30, much less if you have access to theatrical make-up, I have already sourced all specialist parts - I just lack an appropriate place to wear it)3. A pumpkin substitute for decorations - low cost, more novelty value than anything.I reserve the right to refuse to send ideas to members who do not seem to be set on actually making the 'ibles.

Posted by Kiteman 10 years ago


Instructable not selected for contest

I recently published an instructable(https://www.instructables.com/id/ArrDrownHo-Easily-convert-AVR-to-Arduino-compat/) and added it to the Kit contest and Arduino contest while publishing. The instructable was only visible on my 'you' page and was missing from the technology or recent sections. I checked earlier questions and learned about filters. So waited patiently. After 3-4 days(2 were weekend), it became visible. But it didn't get selected for any of the contest. The Kit contest is now past the period of taking submissions. I'm not sure if it's the mischief caused by the filters or it got rejected. The mail instructed that if I don't hear back in 1-2 business days, I should consider it rejected. Should I add to Arduino contest again or wait?

Posted by Antzy Carmasaic 5 years ago


Laptop Password Help

OK, so I'm typing on this laptop...It was assigned to Kitewife by an ex employer who seems to have forgotten they assigned it to her several years ago.If they ever ask for it back, we will happily hand it back, but they treated Kitewife very badly for quite some time before she left, so we have forgotten that we have it.Anyhoo, it works OK, little slow, but fine for the boys to use. Except that it's software hasn't been updated for at least three years. There are whole chunks of the internet that are invisible to it. The Flash, Java, Adobe, even the anti-virus are stupidly out of date.Unfortunately, the laptop has an admin password.Now, I could ask Kitewife's ex employer what the password is, but they might remember that she has it.So...Any ideas?I've had a look at the various password "hack" ibles, but they haven't been any help.

Posted by Kiteman 9 years ago


microwave "anagram"

I have that maker-ish compulsion to disassemble any and every broken or otherwise defunct appliance, gadget or device. For example, my microwave just "went to sing with the choir invisible", so I have begun turning it into a pile of parts. I got to thinking- as many of you must have doe before- "what can I do with this stuff?". Just like anagramists take words and shuffle their parts (i.e., letters) around to make something(s) new, different and/or clever, I'd like to try to do the same thing with my old appliance. But more generally, I wish there were a database of appliance "anagrams"- a list of clever projects classified according to the appliance from which the parts come. Anyway- if anyone has an idea what could be done with an old microwave (I've got my eye on that big capacitor...), please hold forth!

Posted by Bom6at 9 years ago


Joining carpet pieces

I'm looking for ideas on how carpet pieces might be joined together into a whole (e.g. rugs made from carpet samples). The gaffer tape solution which is posted all over the web in tutorials isn't strong, only lasts a few months and doesn't work well with small carpet pieces.  I've successfully sewn carpet piece in the past with fishing line (so the stitches are strong and invisible) however this technique only works well with larger pieces due to the time it takes and amount of work.  Has anyone here tried any other techniques and been successful with both large and small carpet pieces?  My other idea was to use wood glue to glue the pieces to a hessian sheet.  I haven't tested this but the hessian base on most carpet pieces should merge well with the hessian sheet. thoughts or ideas appreciated.

Posted by garrettlynch 1 year ago


How does one start a collaboration?

I have an idea, and I'd like to make an instructable out of it, if I had the slightest idea how to turn the idea into a working project, and for that I will need help. I could start the collaboration process here in this thread but I figure there is a collaboration section for a reason. so... how does one collaborate on instructables?Okay never mind, I can't wait. I want to build one of these... https://static2.instructables.com/pub/FJY/PZ0B/FJYPZ0BFRCEYJ3IE8N.medium.jpgan Invisible Bookshelf 2.0to their credit you could just buy one here, but I'd much rather build my own... I have a few thoughts on how, but saw so many comments on how I could have done my 1.0 better... so I thought... why not collaborate?My thinking so far:Several hair picks side by side sandwiched in one and a half foot long (whats with my obsession with these) "L" brackets.

Posted by dorxincandeland 11 years ago


Top 10 Instructables For the Home

Shelving, tables, lighting, and more: what better way to outfit your house with what it needs than to make the accessories yourself? Check out this list of some of the best Instructables to help improve your home.As always, they're in no particular order. Invisible Book Shelf by dorxincandeland Have an old book you're never going to read or use again? Free up some storage space and utilize that book to create a bookshelf that makes your books look like they're floating around. .   Concrete Kitchen Countertop by doubleabattery Combine the fun of DIY with the finished look of a professional product with these concrete countertops made from concrete. .   Simple Platform Bed by aeray Pick up your mattress from the floor: with only a few materials and easy steps, you can efficiently make a platform bed. For another option, try the Pipe Dream Bed.   Aquarium Coffee Table by x86Daddy You can give your living room a fishy feel with this sure-to-impress aquarium coffee table. .   Literary Clock by mdhaworth If (after the Invisible Bookshelf) you've got another book to spare, you can turn it into a timepiece perfect for any room . .   Laptop Stand by jumpfroggy Need to check the latest Instructables after you've already called it a night? This laptop stand will help you comfortably compute in bed or wherever you need a solid surface. .   Tennis Ball Chair by wholman Revamp an old chair into a stylish, comfortable work of art featuring tennis balls. .   Knife Block by engineerable A high-quality, wall-mounted knife block safely stores and organizes up to 30 knives of varying shapes and sizes. .   Minimalist Desk by arte.sano Create a functional workspace with your own very simple desk using workhorses and a door panel. .   Paper Lamp by drips Light up your house in style with this geometric table lamp made out paper, or opt for the classic Lampshade Polygon Building Kit .   Now there's no excuse for putting off those renovations. Add your other favorites below!

Posted by joshf 10 years ago


A TRICK FOR ONLINE GAMMERS

Wanna know how to disappear and become invisible in an online game such as KILLZONE,SOCOM,....... Racing games.......(the list goes on and on.....) You will need: Ethernet Cable Small Switch Gaming system (online compatible( ps2,ps3,wii,xbox,xbox 360,) ( must be connected with a wire WIFI wont work Online Game All you have to do is cut the orange wire on the inside of the cable and put a switch there. then put the switch in the of position when you want to disappear. NOTICE: This may not work with all games. this only lasts about 7-10 seconds and then you are disconnected from the network. It is just like unplugging it but it is easier. ????: Why is there 8 wires in cat six (maybe its cat five) cable and olny four of them are used ? (waste of coper and bpa releasing plastic) Would have made an instructable but its not worth it. Yes cheating is weak I just like the disappearing part You don't disappear but nobody can see you

Posted by littlechef37 10 years ago


Constructing a realistic lasergame

I am making a laser game/tag system and I would like an IR detector/sensor that can tell the difference between a direct hit and a near hit fly by so that the "bullets"can still cause sounds on a near hit. The sensor should be as invisible as possible but should have a very clear and acurate detection. If there is no way I can make it work I will tweak the guns to be louder. Guns will have to hit over atleast 200 meters "For snipers". I know I need a double-convex lens but I just don't know wich LED I need. It would also help if next to a focused LED there is a way to send an infrared signal in all directions for just a while "For explosives". I have looked at ad hoc but no idea if it would work in there. For the suits I will most likely use sensors connected to a micro-controller/processor. Oh I forgot to mention that I am not using infrared lasers because they will most likely burn or damage the equipment.

Posted by xpalix 2 years ago


How to use Fiber Optics?

I am making a super-discreet earpiece/IEM that is intended for any use where you feel bored, where you are not supposed to use electronic devices. Meetings, lectures, classrooms, etc. Basically, it's a 3.5mm jack wired to a Balanced Armature driver. Essentially, I remove the big, thick and bulky housings of earpieces and leaving the smaller drivers in place. I've been using thin copper cables in the earpieces I buy. They work, but are still visible. I found that optical cables are near invisible, glass-like. I intend to wire them into my earpieces. So, do I require lots of circuits? I can do those, if they don't poke a black hole in my wallet. No more than USD100, if entirely possible.  I just want to know how to change electricity into light and back again, and allow for audio transfer from MP3 player to earpiece drivers.

Posted by chua_erei 5 years ago


Best solar light, UV LED to use for UV Sun Jar

I'm making a Sun Jar, but I want to swap out the normal white LED for a UV LED. My plan is to spray the inside of the jar with invisible UV reactive paint, so when then LED comes out, the jar suddenly starts glowing a different color. I tried making one tonight, but wasn't happy with the results.  I was using the black plastic Hampton Bay light from Home Depot - http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&productId;=100068888&langId;=-1&catalogId;=10053&ci;_sku=100068888&ci;_src=14110944&cm;_mmc=shopping-_-googlebase-_-D27X-_-100068888&locStoreNum;=1002&marketID;=48.  It's only powered by 1 AA battery, and the resulting glow from the LED was really dim.  I got no reaction at all from the UV reactive ground marking paint I was using in my test. Any suggestions?

Posted by mikejstein 8 years ago


Metro 2033 Light Sensor

I'm working on a Metro 2033 cosplay costume and being the gadget-geek I am I'd like to make a working copy of the light sensor Artyom carries on his wrist. For anyone who haven't played the game (or read the book, I bought it today but I don't know it he's got the same thing there) it's basically just three LED:s (red, yellow, green) that light up depending on how well illuminated you are (red=fully illuminated=people will see you instantly and shoot, yellow=partly illuminated=people will see you unless you take cover, green=as good as invisible unless you give away your position with noise or flashlight). In the game it's abut the size of a 9v battery but flatter and for simplicity I'd like to keep it like that; I don't fancy carrying around an Arduino or something like that on my wrist. Here's a picture: http://bi.gazeta.pl/im/5/7534/z7534645X,Metro-2033.jpg So, my question is: Is it possible to make something like that small and simple enough to be stuck to a wristband?

Posted by Jur 3 years ago