The spectral lines move towards one direction, or towards the other direction, depending on the relative speed.
Liquid oxygen
O, because O stars are the hottest, so they use their energy faster than the lower stars.
To do what? Row? That would be impossible as there is no evidence of water on the moon.
Yes, the HST is still working.
Bridget Bishop. She was tried alone before they finished the debate over whether or not to use spectral evidence in court was finished because they had found what they figured was real evidence in her home and didn't need spectral evidence to make a case.
Yes, shadufs are still in use today.
In accoustic measurements, spectral mean refers to the center of gravity for a certain sound wave selection.
The 2 locks that are still in use today is the Poe and the MacArthur locks.!!
Police use DNA evidence to run tests and find out who committed a crime.
Are ploughs and fallow land still use today
not specific.
we still use chinese dragons
spectrometers split light, then the spectral lines show , and you can use spectral analysis to find out what elements are making the light.
yes
All generations from 1st to 4th are still in use today.
We still use Roman numerals today because they are the numerical aspect of the Latin language which is still used and spoken today.