Answers to Physics Questions

How far is a light-year?

04 December 2018

What, or when, would aliens see, if they looked at the earth?

Medicine | Physics

Why would raspberries spark in a microwave?

01 May 2012

Should I completely fill my freezer?

01 May 2012

When looking at distant objects, are we looking at the past?

01 May 2012

Biology | Medicine | Physics

Is there such a thing as a "girl's throw"?

29 April 2012

Physics | Technology

How do kinetic watches work?

29 April 2012

Engineering | Medicine | Physics

Why can I cycle faster than the fastest runner?

29 April 2012

Medicine | Physics | Technology

Is microwaving food safe?

29 April 2012

Archaeology | Medicine | Physics

Are there limits to what we can understand about the universe?

25 April 2012

How does the sun produce photons?

25 April 2012

Could we detect evidence of civilisation on the night side of a transiting planet?

25 April 2012

Are some galaxies moving so fast as to be invisible?

25 April 2012

Is the solar system expanding?

25 April 2012

Could Dark Matter be interfering with our measurement of G?

25 April 2012

Could a new big bang happen in the universe?

25 April 2012

Chemistry | Physics

Why are streetlights orange?

03 April 2012

Physics | Technology

Why do low energy lightbulbs take so long to reach full brightness?

01 April 2012

How did the Universe come by its angular momentum?

01 April 2012

Where does air turbulence come from?

01 April 2012

What causes elliptical planetary orbits?

01 April 2012

Chemistry | Earth Science | Physics

What is thorium and why is it playing a role in the nuclear debate?

27 March 2012

What makes newer nuclear plants safer?

27 March 2012

What is the half life of plutonium?

27 March 2012

Chemistry | Physics

What is an isotope?

27 March 2012

Is there an absolute maximum temperature?

25 March 2012

We know there is an absolute zero temperature, but is there an absolute maximum? A temperature beyond which things can...