Anonymous asked 10/20/2017 A laser generates a pulse at 450 nm containing 2.75 × 10^15 photons. What is the energy of the pulse?
HappyTo BeHereTo asked 10/18/2017 For the first time, scientists have seen two neutron stars collide. Cool ! What space observations or missions have caught your interest?
Darik Majoren asked 10/11/2017 Have you learned anything from Burtit, and if so, what was the thing you remember most?
HappyTo BeHereTo asked 10/10/2017 Can you remember a time you were helpful and it felt especially good?
Anonymous asked 9/20/2017 Can you think of any benefits or drawbacks to using animals in psychological research?
