Van De Graaff (VDG) Generator kit - V2 - 150mm - 40,000V of sparky fun.
The 150mm Van De Graaff kit is designed for kids (or adults) to learn about "static" electricity by actually building a working device. A small High voltage generator that will achieve 30,000 to 40,000 volts of "static" electricity. The 150mm van De Graaff generator is a complete Van de Graaff system, comprising of a Polished Stainless Steel Dome, a high speed motor, dissimil... Read More #kits#makers#stem#science
Stop using chat rooms (like Discord) as a replacement for tech support forums! Chat rooms and private messaging have a place for synchronous communication, but threads get easily lost, and they’re usually not indexed by search engines. #DevRel#education#stem
The invention of the screw was over 2300 years ago. Yet this simple object remains the fastener in nearly every modern-day invention. This week, Big Picture Science unwinds the history and importance of ingenious and deceptively simple devices in: “Nuts and Bolts”.
What’s the big deal about tiny devices like springs and screws? This week, Roma Agrawal shows us how the world as we know it couldn’t function without these simple, but ingenious, objects. It’s “Nuts and Bolts” on Big Picture Science.
Check out this Martian panorama, captured by Curiosity two days ago, on Sol 4174. It is made of 50 adjacent images, each 1328x1184 pixels. Let's go for some zooms👇
Let me disabuse you of the idea that a Martian colony is the way to save mankind.
Survival on Mars is 1000x more difficult with no free flowing water, no atmosphere, no ozone, no magnetosphere, much less solar radiation to power anything including biological life.
Choosing Mars is picking the absolute worst probability to beat gambler's ruin.
Even a 3' warmer Earth is better.
The first IQ test is to stop pursuing stupid ideas as a magic bullet.