Collaborate Disseminate
Every action camera these days seems prone to overheating and sudden shutdowns after mere minutes of continuous operation. It can be a real pain, especially when the only heat problem …read more Continue reading Copper Bling Keeps Camera Chill
Time crystals sound like something a video game character would be trying to collect, but this bizarre phase of matter is very real – and now one of them has been created in Google’s quantum processor, Sycamore.Continue ReadingCategory: Physics, Scienc… Continue reading Time crystals created in Google’s quantum processor
I recently started using a 50-year-old vacuum-seal flask that belonged to my Grandpa so that I don’t have to leave the dungeon as often to procure more caffeine. Besides looking …read more Continue reading The Incredible Tech of the Vacuum-Seal Flask
Join us on Wednesday, September 30 at noon Pacific for the Mechanical Engineering Hack Chat with Adam Zeloof!
Almost every non-trivial project involves some level of cross-discipline work. If you build a robot, for instance, you need to worry not just about the electronics but also the mechanical design. You …read more
It’s a simple fact that, in this universe at least, energy is always conserved. For the typical electronic system, this means that the energy put into the system must eventually leave the system. Typically, much of this energy will leave a system as heat, and managing this properly is key …read more
Continue reading A Crash Course In Thermodynamics For Electrical Engineers
Despite the claims of “free energy” on the title of the video below, this is not yet another wacky perpetual motion story. We here at Hackaday fully support the laws of thermodynamics, and we think you should too. But you have to admit that a pump that works without any apparent energy inputs looks kind of shady at first glance.
The apparatus in question is a ram pump, a technology dating back all the way to the 18th century. The version that [Junkyard – Origin of Creativity] built uses commonly available materials like PVC pipes and fittings. About the only …read more
This is very, very strange. Continue reading The Fiji Government Backed an App That Claims to Defy Physics
Ever noticed that a rubber band gets warmer when it’s stretched? The bands also get cooler when allowed to snap back to relaxed length? [Ben Krasnow] noticed, and he built a rubber band cooled refrigerator to demonstrate the concept. The idea of stretching a rubber band to make it hotter, then releasing it to make it cooler seems a bit counter intuitive. Normally when things get smaller (like a gas being compressed) they get hotter. When pressure is released the gas gets cooler. Rubber bands do the exact opposite. Stretching a rubber band makes it hot. Releasing the stretched band …read more
[Mr_GreenCoat] is studying engineering. His thermodynamics teacher agreed with the stance that engineering is best learned through experimentation, and tasked [Mr_GreenCoat]’s group with the construction of a vacuum chamber to prove that the boiling point of a liquid goes down with the pressure it is exposed to.
His group used black PVC pipe to construct their chamber. They used an air compressor to generate the vacuum. The lid is a sheet of lexan with a silicone disk. We’ve covered these sorts of designs before. Since a vacuum chamber is at max going to suffer 14.9 ish psi distributed load on …read more
Continue reading DIY Vacuum Chamber Proves Thermodynamics Professor Isn’t Making It All Up
