What's a 'zeptosecond' and why is it newsworthy in the last few days? (Page 1/2)
rinselberg OCT 19, 04:28 PM
"A zeptosecond is a trillionth of a billionth of a second, or 10-21 seconds."


quote
In the global race to measure ever shorter time spans, physicists from Goethe University Frankfurt have now taken the lead: together with colleagues at the accelerator facility DESY in Hamburg and the Fritz-Haber-Institute in Berlin, they have measured a process that lies within the realm of zeptoseconds for the first time: the propagation of light within a molecule.



"New world record in short time measurement"
Goethe University online; October 16, 2020.
https://aktuelles.uni-frank...rt-time-measurement/

Brief report with one image: a schematic representation of the experiment.

Read-o-Meter calculated time to read the report: 188 * 1021 zeptoseconds

[This message has been edited by rinselberg (edited 10-19-2020).]

steve308 OCT 19, 04:34 PM
Not even close. The shortest time you can measure is how long I listen to a Biden add.
MidEngineManiac OCT 19, 04:35 PM
I can get WAAAYYYYYYYY to much mileage out of THIS one !!!!!........BTW, Zeptosecond, your wife said to bring home milk
rinselberg OCT 20, 03:17 AM

quote
A theory from Albert Einstein has been put into practice to observe extremely shortest time intervals between two events.


quote
Scientists have measured the shortest interval of time ever recorded, clocking how long it takes a particle of light to cross a single molecule of hydrogen.

The ultra-quick journey took 247 zeptoseconds, according to a team of German researchers, with a zeptosecond representing a trillionth of a billionth of a second. This is equivalent to the number 1 written behind a decimal point and 20 zeroes.


This report (fairly brief) makes the connection with Albert Einstein and the photoelectric effect.


"Scientists clock the fastest interval of time in 'zeptoseconds'"

Denise Chow for NBC News; October 19, 2020.
https://www.nbcnews.com/sci...eptoseconds-n1243903

[This message has been edited by rinselberg (edited 10-20-2020).]

sourmash OCT 20, 10:26 AM
The future, present and past all exist in the same instant.
MidEngineManiac OCT 20, 11:17 AM

quote
Originally posted by sourmash:

The future, present and past all exist in the same instant.



There is no gravity, the world just sucks.
williegoat OCT 20, 11:26 AM
A Zepposecond is the amount of time this guy spent in the limelight.
theogre OCT 20, 12:55 PM
"What's a 'zeptosecond' and why is it newsworthy in the last few days?"

1. Is another Very expensive money pit by "scientists" that want another grant from Govrmnt.
2. MSM Is "newsworthy" only to ignore/hind other real new stories in this cycle.
3. Sci "News" is "Publish or Perish" for a few people that "wrote a paper."

In Basic levels is sim to fools w/ money to burn "overclocking" a PC w/ Liquid Nitrogen etc. to get bragging rights for maybe a few days.
Or people looking for next digit of Pi etc that means nothing to the rest of word and often not even to most other Scientists.

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave

[This message has been edited by theogre (edited 10-20-2020).]

rinselberg OCT 20, 06:13 PM
Even at the risk of a stout verbal blow from theogre's massive wooden club, I am here to venture my opinion, that this Zeptosecond experiment is profound--and about a gazillion times more newsworthy than using liquid nitrogen to achieve the overclocking of a PC or something like that.

This is confirmation of an aspect of the photoelectric effect that was, prior to this experiment, only a hypothesis. In the words of the Prof (Professor Reinhard Dörner) "We observed for the first time that the electron shell in a [hydrogen] molecule does not react to [an impinging photon] everywhere [within the shell] at [exactly] the same time. [It is not an instantaneous process.] The time delay [is measurable] because information within the molecule only [propagates] at the [extraordinary but still very finite] speed of light."

At the current moment, and within any clearly foreseeable future, this achievement resides entirely within the realm of the most fundamental scientific research.

But who wants to step up and rule out any possibility that there could a moment in the not so distant future when a "light bulb" goes on inside of someone's head, and that man or woman (or boy or girl) thinks to themself, "Wait a second. I think this could be turned into a design for quantum-based computing that would knock the socks off of that mostly useless cluster f*ck that we got sucked into buying from D-Wave Systems."

I know where I stand on this issue. I stand with the Zeptosecond. I'm "All In."

[This message has been edited by rinselberg (edited 10-20-2020).]

olejoedad OCT 20, 07:01 PM
I suspect that puts you into an even more exclusive segment of the population.