World clock: What is it and how does it work?
1:48
World clock: What is it and how does it work?
2022年8月26日
SPACE.comLaura Mears
The nuclear-powered clocks of the future
7:23
The nuclear-powered clocks of the future
1 个月前
MSNSciShow
The Doomsday Clock: What Is It & How Does It Work?
1:29
The Doomsday Clock: What Is It & How Does It Work?
1 个月前
MSNunbranded - Newsworthy
Scientists move 'Doomsday Clock' closer to midnight
0:32
Scientists move 'Doomsday Clock' closer to midnight
1 个月前
MSNCNN
NIST Unveils Cutting-Edge Atomic Clock for Precise Timekeeping
2:24
NIST Unveils Cutting-Edge Atomic Clock for Precise Timekeeping
9 个月之前
MSNMorning Rush - Video
The Doomsday Clock: What Is It & How Does It Work?
1:29
The Doomsday Clock: What Is It & How Does It Work?
1 个月前
MSNunbranded - Newsworthy
How optical clocks are redefining time and physics
5:10
How optical clocks are redefining time and physics
11 个月之前
MSNNew Scientist
0:55
The Doomsday Clock: What is it & how does it work?
1 个月前
MSNunbranded - Newsworthy
2:24
NIST Unveils Cutting-Edge Atomic Clock for Precise Timekeeping
9 个月之前
MSNMorning Rush - Video
0:48
This atomic clock keeps time for 15 billion years
2 个月之前
MSNThomas Mulligan
0:52
How does the Doomsday Clock work?
1 个月前
MSNXPLNR
7:35
Inside The Most Precise Atomic Clock in the World
已浏览 22 次2024年12月4日
bilibili来自星星的何副教授
0:52
What is the Doomsday Clock?
1 个月前
MSNXPLNR
0:25
Atomic clock developed at CU Boulder helps the U.S. Navy
5 个月之前
MSNKUSA-TV Denver
0:32
Doomsday Clock 2026: Scientists set new time at 85 seconds to midnight
1 个月前
MSNWKYC-TV Cleveland
0:30
Atomic 'doomsday clock' ticks closer than ever to midnight
1 个月前
MSNReuters
0:30
Atomic 'doomsday clock' ticks closer than ever to midnight
1 个月前
MSNReuters
0:32
Doomsday Clock set at 85 seconds to midnight
1 个月前
MSNWPMT Harrisburg
0:48
2026 Doomsday Clock moved closest ever to midnight amid WW3 and clim…
1 个月前
MSNMetro
2:21
Scientists say AI was one of the biggest concerns in new Doomsday …
1 个月前
MSNCNN
U of T students construct what could be the world's most accurate clock
3 个月之前
citynews.ca
1:26
What is the doomsday clock, and what does it mean when it gets to midnight?
1 个月前
MSNThe Associated Press
0:30
'Doomsday Clock' moves closer to midnight
1 个月前
MSNKYTX-TV Tyler-Longview
2:04
How Do Atomic Clocks Work? | Britannica
2024年1月29日
britannica.com
观看更多视频
静态缩略图占位符