Tagged Questions

-1
votes
2answers
120 views

Bolometer calibration - voltage and intensity

I am interested in possible hazards due to high intensy infrared light sources. Therefore I want to use the "PASCO TD-8553 radiation sensor" (website) to measure the intensity of the radiation of an ...
11
votes
4answers
1k views

How can I measure the mass of the earth at home?

How can I measure the mass of the earth at home? How was the mass of the earth first measured?
12
votes
9answers
910 views

What are good mechanics experiments for 10 year olds?

I'm trying to explain elementary mechanics - without the benefits of calculus or even algebra - and struggling. I'd like to find reasonable ways to demonstrate Newton's laws, minimally, and possibly ...