Technology

34894 readers

992 users here now

This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.

Ask in DM before posting product reviews or ads. All such posts otherwise are subject to removal.

Rules:

1: All Lemmy rules apply

2: Do not post low effort posts

3: NEVER post naziped*gore stuff

4: Always post article URLs or their archived version URLs as sources, NOT screenshots. Help the blind users.

5: personal rants of Big Tech CEOs like Elon Musk are unwelcome (does not include posts about their companies affecting wide range of people)

6: no advertisement posts unless verified as legitimate and non-exploitative/non-consumerist

7: crypto related posts, unless essential, are disallowed

founded 5 years ago

MODERATORS

[email protected]

206

This camera captures 156.3 trillion frames per second (www.engadget.com)

submitted 7 months ago by [email protected] to c/[email protected]

25 comments fedilink hide all child comments

Scientists have created a blazing-fast scientific camera that shoots images at an encoding rate of 156.3 terahertz (THz) to individual pixels — equivalent to 156.3 trillion frames per second. Dubbed SCARF (swept-coded aperture real-time femtophotography), the research-grade camera could lead to breakthroughs in fields studying micro-events that come and go too quickly for today’s most expensive scientific sensors.

SCARF has successfully captured ultrafast events like absorption in a semiconductor and the demagnetization of a metal alloy. The research could open new frontiers in areas as diverse as shock wave mechanics or developing more effective medicine.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 36 points 7 months ago (6 children)

I was doing some napkin math for how many femtoseconds there are between each frame and how that compares to Planck time but this response does a better job capturing how cool this is.

[–] [email protected] 11 points 7 months ago (4 children)

I'm curious on your calculations nonetheless.

[–] [email protected] 13 points 7 months ago (3 children)

A femtosecond is 10^-15 seconds. Tera Hertz frequency is equivalent to a period length of 10^-12 second, a pikosecond.

So with 156 tera Hertz a frame is around 6.4 femtoseconds.

Planck time is around 10^-43, so still some way to go until we reach the clock speed of our universe :)

Hope I did that right!

[–] [email protected] 8 points 7 months ago

So, considering the speed of light is approximately 3e8m/s, a frame time of 6.4fs means light can move 1.92 micrometers per frame.

load more comments (2 replies)

load more comments (3 replies)