r****r
发帖数: 306 | 1 2012:
China’s Ye Shiwen, 16, covers the final two lengths of the eight-length
400m individual medley in 58.68 seconds, a time that didn’t seem possible
for a woman.
Ye destroyed those closing 100 meters of freestyle 2.9 seconds faster than
the next swiftest finalist and .03 slower than men’s 400m individual medley
gold medalist Ryan Lochte. She shattered the women’s 400m IM world record
by 1.03 seconds.
The last 100 meters were watched again and again, the eye-popping, dubious
Ye flying past Ame... 阅读全帖 |
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m******8
发帖数: 2153 | 2 Just a few years ago, House Republicans were trying to etch their opposition
of gay marriage into the Constitution.
Now? They're almost silent.
It's been one of the swiftest shifts in ideology and strategy for
Republicans, as they've come nearly full circle on same-sex politics. What
was once a front-and-center issue for rank-and-file Republicans -- the
subject of many hotly worded House and Senate floor speeches -- is virtually
a dead issue, as Republicans in Congress don't care to have gay mar... 阅读全帖 |
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W**********r
发帖数: 8927 | 3 http://www.nytimes.com/2010/10/28/technology/28compute.html?partner=rss&emc=rss
A Chinese scientific research center has built the fastest supercomputer
ever made, replacing the United States as maker of the swiftest machine, and
giving China bragging rights as a technology superpower.
Enlarge This Image
Nvidia
The Tianhe-1A computer in Tianjin, China, links thousands upon thousands of
chips.
The computer, known as Tianhe-1A, has 1.4 times the horsepower of the
current top computer, which is at ... 阅读全帖 |
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t****u
发帖数: 10218 | 4 http://www.nature.com/news/speed-test-for-wild-cheetahs-1.13179
"The data revealed the cheetahs’ acceleration powers to be up to 120 watts
per kilogram — about double the power of the swiftest greyhounds and more
than four times that of Usain Bolt during his record-breaking 100-metre
sprint in 2009." |
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B******1
发帖数: 9094 | 5 I wish I could run as fast and complete as you in a marathon. What a race!
I marvel at your determination and perseverance.
The race is not always to the swiftest, but to those who keep on running and
keep on training. |
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K****N
发帖数: 10783 | 6 http://www.youtube.com/watch?v=iZWZo-rnciE
You may tire of me as our December sun is setting
'Cause I'm not who I used to be
No longer easy on the eyes
These wrinkles masterfully disguise
The youthful boy below
who turned your way and saw
Something he was not looking for
Both a beginning and an end
But now he lives inside someone he does not recognize
When he catches his reflection on accident
On the back of a motor bike
With your arms outstretched trying to take flight
Leaving everything behind... 阅读全帖 |
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H********g
发帖数: 43926 | 7 嗯，看起来1飞秒的确还不算很短。那再短1000倍，是啥效果？要短到什么程度，电子
会不是云？电子到底会不会不是云？
1.3 fs – cycle time for 390 nanometer light, at the transition between
violet visible light and ultraviolet[5]
2.57 fs – cycle time for 770 nanometer light, at the transition between red
visible light and near-infrared[5]
15 fs – the swiftest chemical reaction, such as the absorption of a light
photon in the Photosynthetic antenna molecule
200 fs – the average chemical reaction, such as the reaction of pigments in
an eye to light[5]
300 f... 阅读全帖 |
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