Which physical unit is defined as the field intensity that produces one newton (N) of force per ampere (A) per meter of conductor?

Who along with Arthur Compton received the Nobel Prize in 1927 for the development of the cloud chamber for the detection of charged particles?

Which of the following materials or elements is highly effective for making a permanent magnet?

In the early nineteenth century, who demonstrated that there are fourteen space lattices, or regularly repeating arrangements of points in space, that differ in symmetry and geometry?