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2 votes

How exactly did Harrison's chronometer circumvent the impulse problem of time-keeping on a moving ship?

Harrison came up with a number of clever designs. In one he made the clock's pendulum mechanism symmetrical about a plane running through its center (i.e., two penduli that were mirror-images of each ...
niels nielsen's user avatar
1 vote

Does the Earth's Magnetic Field Affect Sleeping Position?

There seems no direct link between magnetic field and the human body. A short period exposure to strong magnetic field is harmless (MRI)
MakiseKurisu's user avatar
1 vote

Why the density have anything to do with initiation of subduction?

First velocities are very low and masses are very large. Momentum ($mv$) is large, but kinetic energy ($mv^2$) is small. So when two plates crash into each other, it is a fender bender. The kinetic ...
mmesser314's user avatar
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