Tell us about yourself!
Thanks Penolopy! :) I used SolidEdge.
16 pages that must be read and signed by the interested parties of course. Kids included... XD
Michelin Starred Risotto
Don't trust me! It's a trap! :)
STEEL BALL BEARINGS?? Well, at least they were easy to clean from the blood... :D
Health and safety is fundamental, but you know... sometimes you win, sometimes you learn! :)
You're right, my girlfriend loves it! XD
Clackers: the Toy of DoomView Instructable »
Thanks Penolopy! I owe you a coffee! :)
Coffee-o-matic DoserView Instructable »
DIY Bike Shed
Thanks for your feedback druševljan! Heat forming the bottle is indeed an interesting idea!
Plastic Bottle Dust MaskView Instructable »
Thanks jeanniel1! :)
That's a good idea!
Hi kymyst, yes I chose a 30 degrees angle at the apex and I didn't implement any adjustment mechanism to keep the whole thing as simple as possible: it's meant to be just a demonstrator. Gluing it to the board is not mandatory but it helps a lot while tracing the curves.
The Lost Art of the Conic Section Compass
Thanks! I tried to keep it as simple as possible...
Thanks! Share it if you do! :)
Hi Ralphxyz, I agree, it is counterintuitive. It's easier to build one and try it! Let me know how it goes! :)
Thanks foxpup! It's much clearer in this way. I'll update the text... :)
thanks ronanry! :)
The Lost Art of the Conic Section CompassView Instructable »
Thank you! If you are obsessed with radiation you should check my other instructable about a 3D printed spinthariscope :)The glow-in-the-dark filament is very nice... but it would glow just a couple of hours and it needs "charging". And it's not nuclear! :D
Don't worry, nothing so tragic... but you are likely to generate a black hole./s:)
Thanks for pointing it out!
Programming a Micro:Bit Robot & Joystick:Bit Controller With MicroPython
Concrete Faux Bois Up-cycled Chair
Gold Cement Earring and Necklace
Thanks Omega0397! I think it's a good suggestion... I should give it a try...
yes I did! For the benefit of mankind as a whole! :o)...(ahem...)
Thanks! I also have a PhD, Chemical and Energy technologies. Even breaking the vial the risk caused by the tritium is negligible. You should be more worried of the broken glass :) Anyone is entitled to their own opinion of course...
Pewter Coins Casted in Cotton Putty Sand
Nuclear Switch LocatorView Instructable »
Thank you sir! :) The mechanism to reset it is called a de-coherer and usually it was a solenoid. A vibration motor will do just as fine I think!
Hi Sven, it's the multimeter's buzzer. After the spark the coherer is conductive and the multimeter's buzzer goes off.
Thanks! :) What do you mean with "modulator"?
you're welcome! :)
Thanks for the tip!
Hi James, the coherer is indeed a (cumbersome) latching switch. The dimensions could be lowered depending on the solution adopted. Anyway to get a reliable device you should experiment with filings size, wires distance at least. Other parameters influencing the behaviour are the filings composition (e.g. iron, zinc, copper or mixtures) and the use of a glass tube under vacuum for example...
great! post your images of you do! :)
Thanks Alex. I'm glad you like it! :)
3D Printed CohererView Instructable »
Thanks brianchadorourke! :) Share it if you do!
Thanks for the insight!
Thanks for your comment! I added a "legal bit" section as well.
I'm afraid I can't help... :)
Hi almateus, the new version is more suitable to be used with a USB microscope. The scintillations are brighter using the scotch tape screen, but I don't know if a normal webcam is sensitive enough. Putting the scotch tape directly in contact with the CCD (powder side facing outwards) should do the job though...
Thanks! :) Well... as long as the source is not ingested or touched with bare hands it should be pretty safe. But the better people to ask for info and authorization should be school's health and safety representatives. Every country has is own laws...
Pocket Size SpinthariscopeView Instructable »
Thanks indoorgeek! :)
Hi SteveM245, I would say not more than 10 USD if you make it at home... (servo excluded)
Thanks gm280! It's quite an old-school project indeed :)
Hi Pedro, I'm afraid I don't have the eagle files anymore. But you can use the PDF files to make your own one, just remember to print them without scaling (1:1 I mean). Get them here:https://cdn.instructables.com/ORIG/FPN/6MDB/JMYWTA4Z/FPN6MDBJMYWTA4Z.zip
Thanks! I hope so... You don't always need Arduino or Raspberry PI to have fun... :)
556 Servo DriverView Instructable »
Thanks! :) Smoke rings? Intersting! How would you implement it?
Not yet, but it's a nice idea!
Thanks! :) Well... the cup doesn't need to be collapsible, I used it in order to get a pocket sized device. You can use a marble, but I wouldn't feel confident in using anything hard (if the balloon rips the marble could be ejected).
At 2 meters you can feel it quite well!
Thank you seamaster! :) An opinion from an expert then!
Pocket Sized Vortex CannonView Instructable »
Not the Usual Lasagna
Controlling Lights With Your Eyes
Thank you the_3d6! :) And thanks for the link, it's a very in deep analysis.