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There’s a new record for the shortest time measurement: how long it takes light to cross a hydrogen molecule
Universe Today ^ | 10/26/2020 | Paul M. Sutter

Posted on 10/26/2020 10:27:51 PM PDT by LibWhacker

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To: LibWhacker

I still believe time is a human construct, whether a short or longer time according to the above theory with photons and atoms interacting. It shows a difference, but it is still the human mind that constructs it. And yes, I did stay at a Holiday Inn.


21 posted on 10/26/2020 11:28:59 PM PDT by A Navy Vet (I'm not Islamophobic - I'm Islamo nauseated. Also LGBTQxyz nauseated)
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To: LibWhacker

Gosh.
It seems like only yesterday we were contemplating why the chicken crossed the road.


22 posted on 10/26/2020 11:59:17 PM PDT by llevrok (Vote while it is still legal! And often.)
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To: LibWhacker

Still longer than Joe Biden’s attention span.


23 posted on 10/27/2020 12:01:31 AM PDT by Dagnabitt
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To: Dagnabitt

Good one


24 posted on 10/27/2020 12:18:09 AM PDT by Greg123456 (It is EVIL to vote Democratic.)
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To: changeitback440

Hydrogen atoms don’t exist by themselves in ordinary mature. Two H atoms combine to make the smallest occurring ordinary matter


25 posted on 10/27/2020 12:20:01 AM PDT by BigEdLB (BigedLB, Russian BOT, At your service)
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To: Telepathic Intruder
You pretty much never find single hydrogen atoms.

If you mean "on Earth," you would be right - but that is a very parochial view of the world.

Only a very small fraction of all Hydrogen found in the Universe is in the form of H2 (or H2O, for that matter).

Extra credit points for guessing in which form most of the Hydrogen is.

Regards,

26 posted on 10/27/2020 12:32:54 AM PDT by alexander_busek (Extraordinary claims require extraordinary evidence.)
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To: grey_whiskers
Seems to me you run into some issues with Planck’s constant there, in determining the position of the electrons to such high certainty.

That's the beauty of this experimental set-up: It doesn't require you to determine the

position of the electrons. Rather, it is sufficient to know the distance between them (with a given probability).

Analogy: I have no idea where my wife is right now (position), nor do I know her speed and direction (momentum), but I know that she is within 2 meters of our son.

Regards,

27 posted on 10/27/2020 12:37:02 AM PDT by alexander_busek (Extraordinary claims require extraordinary evidence.)
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To: LibWhacker

I always thought the second was a little too long. Maybe they should rethink the whole thing and go to metric time after all. Make the second about 1/3 shorter, then make 100 seconds replace the minute.

Daylight Savings Time they could just move the decimal point.


28 posted on 10/27/2020 12:44:08 AM PDT by P.O.E. (Pray for America)
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To: BigEdLB
Hydrogen atoms don’t exist by themselves in ordinary mature.

Most Hydrogen in Nature is in an unbounded, ionized state.

Regards,

29 posted on 10/27/2020 12:49:16 AM PDT by alexander_busek (Extraordinary claims require extraordinary evidence.)
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To: alexander_busek

I guess that’s true, since the temperature in stars is too high for molecules to form.


30 posted on 10/27/2020 12:53:17 AM PDT by Telepathic Intruder
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To: LibWhacker

C’mon man, who didn’t know this!


31 posted on 10/27/2020 1:03:24 AM PDT by billyboy15
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To: LibWhacker

32 posted on 10/27/2020 1:43:07 AM PDT by Bullish (CNN is what happens when 8th graders run a cable network.)
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To: changeitback440
H2 is a molecule.
33 posted on 10/27/2020 2:44:47 AM PDT by gundog ( Hail to the Chief, bitches!)
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To: gundog
H2 is a molecule.

And it rhymes TOO! Good show!

34 posted on 10/27/2020 2:53:18 AM PDT by SES1066 (2020, VOTE your principles, VOTE your history, VOTE FOR ALL AMERICANS, VOTE colorblind!)
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To: Telepathic Intruder

Isn’t pure water a mix of H2O and equal concentrations of atomic hydrogen and hydroxide? Granted, the two reform into H2O when they meet, but I think I recall the ratio remained constant.


35 posted on 10/27/2020 3:02:08 AM PDT by gundog ( Hail to the Chief, bitches!)
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To: grey_whiskers

Just for you GW:
https://www.youtube.com/watch?v=l9SqQNgDrgg


36 posted on 10/27/2020 3:02:25 AM PDT by Cletus.D.Yokel (Scatology is serendipitous.)
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To: grey_whiskers
Heisenberg is pissed off, certainly.

He looks it.


37 posted on 10/27/2020 3:03:41 AM PDT by Lazamataz (The NYT commits acts of violence with their words.)
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To: LibWhacker

Not to be confused with a Yoctosecond.


38 posted on 10/27/2020 3:48:19 AM PDT by tired&retired (Blessings)
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To: LibWhacker

Zep-to-dee-doo-dah, zep-to-dee-ay.
My, oh, my, what a wonderful day.


39 posted on 10/27/2020 4:17:45 AM PDT by DannyTN
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To: Lazamataz

Heisenberg is pissed off, certainly.

He looks it.

________________

It’s not certain. In fact, in principle, it’s uncertain.


40 posted on 10/27/2020 5:06:15 AM PDT by one guy in new jersey
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