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Do the IR LEDS in the TV B gone have to be in this order:

CLEAR BLUE BLUE CLEAR. I did mine differently and it works fine?

Question by UgniusR    |  last reply


does Indium tin oxide reflect inferred? and is it possible to coat glass with it?

Does Indium tin oxide reflect inferred? and is it possible to coat glass with it? in Wikipedia, it mentions its transparent, and acts like a "medal-like" mirror. this seems promising, but can i coat a fuse like light bulb with it, so it will reflect the inferred radiation back to the filament, heating it up more? i idea is this will help make light bulbs more efficient.  

Question by -max-    |  last reply


What is the difference between types of film??

Could you tell me the difference between ultraviolet film (or is the the same as regular film just using an ultraviolet filter) and inferred? I have seen instructables about turning your camera into inferred or ultra violet cameras. I know nothing about this subject.

Question by rookie1    |  last reply


Finding googols without a search engine!

It is not often that you encounter a googol as a "measured" (or inferred) quantity referring to something physical. A preprint out today on arXiv:astro-ph presents a calculation of the total entropy of the observable Universe (in units of Boltzmann's constant, k), coming up with a result Sobs = 3 × 10104 k. The dominant contribution is from supermassive galactic black holes, for which the entropy is proportional to their surface area, which in turn scales like the mass squared.

Topic by kelseymh    |  last reply


Uploaded image is not rotated

I uploaded several photos for my Instructable (https://www.instructables.com/id/Game-board-for-Settlers-of-Catan/). All were taken with my iPhone. One is in portrait mode. When I preview the photo with Irfanview on my PC it is correctly oriented. When I view the photo on Instructables it is rotated 90 degrees to the left. I infer that the iPhone puts some kind of rotation command in the file. Irfanview correctly handles this while the Instructables site does not. Cheers, Jim Schrempp

Topic by jschrempp    |  last reply


Making night vision goggles

I have read and watched a couple of videos about making night vision involving welding masks, sun glasses, digital cameras ect.  i was tempted to make the sun glasses attached with lcd lights, but the brightness may be a issue.   I thought of doing it with a pair of goggles like snowboarding goggles with the red and blue paper but im not sure how i would house  the power supply for led's.      What i would like to do is get a webcam and make it inferred and add extra Led lights, and situate this on top of the goggles visor then because i have a broken PSP (i say broke someone stole the battery and i just haven't used it in 2 years) wire that to the camera if possible so the PSP receives the picture and can power the LED's and camera. Then make a housing for it to sit in front of the visor.   That would make a great pair of goggles to go paint balling with. If that isn't possible what would be better using the red and blue paper, removing the the webcam internals and fill the housing with led's powered by a battery, Still situated on the top of the goggles.    Or taping a digital camera instead of the PSP camera to it.   What would have better quality for inferred? There's no point me demolishing a camera or a PSP if adding paper to the lens does as good of a job

Question by Lloyd;)    |  last reply


Electric Lawnmower tripping circuit-breaker, Motor still runs.

I know you folks must have seen this question many times, but I still have to ask: my electric lawnmower tripped the circuit breaker (I suspect due to excessively long grass), and kept tripping it after I reset the breaker. The weird thing about it is that each time I reset the breaker and restart the lawnmower, the motor would actually start and run for half a second, before the breaker trips again. I infer that means the motor itself is not shot, and possibly not the rectifier either? Can anyone help with this? Thanks in advance!?

Question by Baboony    |  last reply


Without Hot Air: Mackay's new Book on Global Warming

My friend told me about a new book by David Mackay. I've added screenshots of two of the really nice graphs he put together in his book. Says my friend:Forwarded Message:David Mackay, Cambridge U Physics Professor and a flat-out rockstar inthe field of statistical inference, has written a book on SustainableEnergy, which he is (as usual) giving away for free on his website. http://www.withouthotair.com/There's also a few slide decks for the overview: http://www.inference.phy.cam.ac.uk/mackay/and a blog: http://withouthotair.blogspot.com/I'm not much through it yet, but the gist seems to be putting realnumbers on the size of the energy problem, much as Saul Griffith hasbeen doing. It's written in his usual style, which is to say it readslike common sense you feel you should have known all along.

Topic by nagutron    |  last reply


Jargon ... it's not just for breakfast anymore

Here's the title and abstract of a preprint that was posted to arXiv yesterday. I have no certain idea of what it all mean, and I'm a practicing physicist! I just find the ratio of unintelligible jargon to English really amusing.Monopole and Topological Electron Dynamics in Adiabatic Spintronic and Graphene SystemsAuthors: S. G. Tan, M. B. A. Jalil, Takashi FujitaComments: 21 pagesSubjects: Quantum Physics (quant-ph)A unified theoretical treatment is presented to describe the physics of electron dynamics in semiconductor and graphene systems. Electron spin fast alignment with the Zeeman magnetic field (physical or effective) is treated as a form of adiabatic spin evolution which necessarily generates a monopole in magnetic space. One could transform this monopole into the physical and intuitive topological magnetic fields in the useful momentum (K) or real spaces (R). The physics of electron dynamics related to spin Hall, torque, oscillations and other technologically useful spinor effects can be inferred from the topological magnetic fields in spintronic, graphene and other SU(2) systems.

Topic by kelseymh    |  last reply


Prop Help!!

Hi, I am working as a crew member for the musical Little Shop of Horrors. We need to trigger a confetti blast, a strobe and a sound clip to play with an 8th of second of each other. I was thinking of using a paintball gun (without paint balls) hooked up to a solenoid (or motor with a cam) linked to a computer controlled relay. The plan would be is to use a some wading to launch the confetti out of the gun and have the strobe only blink once right as the sound was triggered. Also we are not allowed to use real pyrotechnics because the madison fire department sucks (safety first, i know). So I guess we could use ether a paintball gun, or an air compressor that is located off stage with a really long line. Also it needs to all fit on a cart the size of a bed side table. So, how should we control them? Computer controlled relay or something else? Also if possible we would like to make the whole thing go off remotely. Either using RF or inferred. Worst case scenario is a small wire that singers/dance wont trip over and die. All suggestions and comments are welcome!! Please comment with any ideas no matter how simple of difficult!! Thanks in advance.!!!!!!!!!!!!!!!! Joe Rowley

Topic by joejoerowley    |  last reply


A Perplexing Plurality of Privacy Policies

Near the bottom of many of the pages found on Instructables.com, there is a section labeled "About Us", and underneath that heading there is a list of various links,  titled: "About","Advertise","Press","Contact","Jobs","Legal","Help", and "Privacy Policy" The problem is this:  The link titled "Privacy Policy", does not always link to the same URL. On some pages it links here: https://www.instructables.com/about/privacy.jsp However on other pages it links here: http://usa.autodesk.com/privacy/ One of those pages is the simple, honest PP that Instructables has had for as long as I can remember, going back to the distant bygone era of at least 2008, by my recollection at least. The other page is, what I am guessing is, the privacy policy "inherited" from Autodesk, back in 2011, which was a long time ago, but not that long ago. In contrast to the old Instructables PP, the newer Autodesk PP seems to me to be a little bit more labyrinthine.  You know:  you follow a link, then you follow another link... http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id;=14175119 http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id;=14175119#9 http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id;=13252943 and that leads to an op-out form, which contains the plural question: "Would you like to receive information from Autodesk, our affiliates, or partners including information about new products and special promotions? Via Email?Via Phone? Via Postal Mail?" And there are three little [Yes][No] radio buttons for those. For some reason, maybe it's just the voices in my head,  I don't even want to know what happens to anyone who submits that form. I mean its probably mostly harmless.  Probably.   But, still, I don't want to touch it. Anyway... my point here is that even though no one ever actually reads the privacy polices, it would be nice if all the links that say "Privacy Policy" on Instructables point to the same page.  I think it  would look more consistent and sane that way. Moreover, it would be extra special nice, if the PP page all Instructables pages link to is the nice, simple one, on the Instructables domain, here: https://www.instructables.com/about/privacy.jsp And maybe everyone here could just ignore that other PP on the Autodesk domain. I mean, that's my suggestion for solving the consistency problem. In fact there exists a clause in the Instructables PP under "Business Transfers", and the language in that sort of infers  the Autodesk PP may be in effect.  That is, assuming everyone knows about Instructables being owned by Autodesk. What I'm saying it that you could just leave it up the members who read the Instructables PP, to conclude that the AutoDesk PP may be in effect,  that might be good enough, and interested persons could look into that can of worms, on Autodesk's domain, on their own if they want to. In conclusion:  Just change all the links titled "Privacy Policy" to point to: https://www.instructables.com/about/privacy.jsp and call that good.  Because the alternative, links to plural PPs across different domains, is confusing, and kinda looks inconsistent and bad.

Topic by Jack A Lopez    |  last reply