|TriColour LED Flashlight||
Keywords: activity, battery, breadboard, circuit, colour addition, LED, resistors, switch, tricolour LED
Make your own TriColour LED Flashlight!
This is a straightforward classroom or summer camp activity to teach students simple circuitry and the addition of colours. The students can go home with a useful and energy-efficient flashlight.Read More...
|5 years 30 weeks ago|
Keywords: activity, dose, nucleosynthesis, Radioactivity
Milk contains enough radioactive potassium-40 to set a Geiger Counter humming. But it didn't come from Fukushima, or any human activity.
Milk (and own bones) contains a lot of ancient radioactive potassium-40, which was made in a supernova explosion about five billion years ago.Read More...
|5 years 50 weeks ago|
Keywords: activity, fluids, laminar flow, mixing, reynolds number
"Unmixing" a mixture is impossible, right? So what's going on here?
Find out how to construct your own "(un)mixing" demonstration and learn about how it works here.Read More...
|4 years 14 weeks ago|