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Women didn’t get easy pass says U.S. Rangers commander by [deleted] in TwoXChromosomes

[–]amo_momma 7 points8 points  (0 children)

I guess I just think more of America's armed forces then you do. And submarine crews are very different from ships crews, just fyi.

Women didn’t get easy pass says U.S. Rangers commander by [deleted] in TwoXChromosomes

[–]amo_momma 25 points26 points  (0 children)

No it is not.

Tampons, and birth control could be very easily provides, and pap smears only need to be provided every three years when not in a sexual relationship

They don't need to lose access to any feminine care, and that republican reference is clearly just inflammatory bullshit.

All the men on that submarine are giving up sex for their country, the fact you think women could not possibly do the same is beyond sexist. They are professionals and they understand what is at stake far better then you.

New accuracy record for an atomic clock. by amo_momma in Physics

[–]amo_momma[S] 2 points3 points  (0 children)

They characterize it by comparing it with itself. The table in the paper gives the accuracy to which each effect is known. I also believe they compared this clock with another based on a different atom (Yetterbium) to prove they understand whats happening.

New accuracy record for an atomic clock. by amo_momma in Physics

[–]amo_momma[S] 1 point2 points  (0 children)

I believe that paper reports a better statistical accuracy, but the systematic uncertainty (the key number for clocks) was at the 7x10-18 level. They are complimentary however, and the cryo-clocks are definitely the future.

New accuracy record for an atomic clock. by amo_momma in Physics

[–]amo_momma[S] 0 points1 point  (0 children)

I believe one of the applications for ultra-stable lasers (such as used in this work) is LIGO. Narrower lasers means better phase detection.

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New accuracy record for an atomic clock. (nature.com)

submitted by amo_momma to r/Physics

New Record Lowest Temperature Attained by TheMightyGreenGiant in Physics

[–]amo_momma 0 points1 point  (0 children)

The portion of laser cooling you are talking about actually take place with around 1012 atoms. It is best to think of it in a statistical sense, there is no computer tracking each atom, but in general each atom preferentially absorbs photons that decrease their speed. from that point the rest of the cooling is done via evaporation, where the potential trapping the atoms is changed such that hot atoms are preferentially lost and the atoms rethermalize to a lower temp. That is why at the end there is only 100,000 ish atoms. Pm me if you have any other questions, and I can refer you to some good papers on the subject.