When confronted by a difficult problem you can solve it more easily by reducing it to the question "how would adventure star Indiana Jones handle this?"
So by timing the pulses of the x-rays, you can get a handle on the Doppler shift of the neutron star.
你可以运用,中子星的,多普勒顿移,这意味着你可以得到。
3
Look for Big Dipper, spoon of form at first, lengthen fivefold with two interval of star, spoon of handle, can find the north star on this straight line.