Physics

Questions and Answers

What happens to the observed frequency when the source, receiver and medium are moving? (Doppler effect)

Questions and Answers

What exactly happens in the body during a Doppler ultrasound examination?

Questions and Answers

Why does an iron rod, partially held in water, appear to be deformed?

Questions and Answers

How much information does 1 photon contain?

Questions and Answers

The main colors are red, blue and yellow. So why does a computer screen consist of red, blue and green, instead of red,...

Questions and Answers

Are there also black lamps?

Questions and Answers

How can you differentiate a function when the variable ( eg x ) is the exponent? Eg F(x)= 2 raised to the x...

Questions and Answers

Is it a unique photon that departs from the sun’s core and reaches my eye through the moon, or is it just the last...