166 reputation
3
bio website
location
age
visits member for 2 years
seen Sep 27 at 17:43

Mar
9
comment Quantum distance ladder
@Qmechanic, The lecture explains how Greeks measured the radius of earth, then used that to measure the distance to the moon, then used that to measure the distance to the sun, etc. I assumed that my question would be clear without watching the lecture.
Mar
9
asked Quantum distance ladder
Jan
18
comment Magnetic muscles
@BrandonEnright I wonder if that could be offset by the number of loops. That is, could, instead of a plain wire, the coil be made of a thin track in a similar way to a circuit board?
Jan
18
awarded  Student
Jan
18
asked Magnetic muscles
Jan
13
awarded  Supporter
Sep
2
awarded  Teacher
Sep
2
answered Why should space be empty?