In this video by QuantumBoffin, an experiment demonstrates the total internal reflection of light inside a glass block. An angular scale is used to measure the critical angle and determine the refractive index of the glass [full video: ] , page 218

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In this video by QuantumBoffin, an experiment demonstrates the total internal reflection of light inside a glass block. An angular scale is used to measure the critical angle and determine the refractive index of the glass

[full video: ]
有趣
( buff.ly )

2年前由 Massimo 提交

1周内 1个月内 1年内全部时间

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The “subject matter experts” are the ones who allowed this war to happen in the first place. The “experts” are totally clueless.
I trust and
btc
( twitter.com)

11个月前 • Alex Bruesewitz 🇺🇸 0 评论

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This brilliant cartoon clearly explains Trump's position on Ukraine. It is in Ukrainian with English subtitles. Share it with anyone who keeps repeating russian propaganda.
时政
( twitter.com)

10个月前 • Roman Sheremeta 🇺🇸🇺🇦 • 下载视频 0 评论

00:02:16

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Every seat in this giant arena that isn’t roped off for security is packed to the ceiling. Honored to be here.
All for Charlie Kirk.
btc
( twitter.com)

6个月前 • Elon Musk • 下载视频 0 评论

00:00:11

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Photographer Simon Needham captured this unique moment in South Africa: a lion towering over a mound of bones, seemingly watching over his kingdom at sunrise.
有趣
( twitter.com)

5个月前 • The Figen 0 评论

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The moral of this story is: even the worst person in the world cannot do more harm than you do to yourself.
pic credit: @ Haich_AI
有趣
( twitter.com)

5个月前 • The Figen 0 评论

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This little NAZI piss ant went into hiding.
Wherever he goes, karma will be waiting.
“Everything the universe does, it does in circles.”
—Lakota proverb
时政
( twitter.com)

4个月前 • Lakota Man 0 评论

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This clip will live in my head rent free forever.
The smile and joy as he says "NO RUSSIANS" is so infectious 🥰
#Kherson #Liberation
时政
( twitter.com)

4个月前 • Richard Woodruff 🇺🇦 • 下载视频 0 评论

00:00:50

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This is incredible 😍.
Eminem and his daughter cleared 700,000 in school lunch debt across 103 schools, making sure children never go hungry. ❣️❣️
时政
( twitter.com)

3个月前 • guyfelicella🇨🇦🍁 0 评论

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She is only 10 years old and already pregnant, forced to marry a 60-year-old man in Pakistan.
What kind of culture normalizes this?
时政
( twitter.com)

2个月前 • Dr. Maalouf ‏ • 下载视频 0 评论

00:00:13

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A man driving in Norway and accidentally spotting Tom Cruise on a train.
Apparently he was filming "Mission: Impossible 7."
Wow, this is so amazing.
有趣
( twitter.com)

1个月前 • The Figen • 下载视频 0 评论

00:00:20

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This truck driver is also an expert in nerves of steel to stop traffic like that and be able to get out of the intersection.
有趣
( twitter.com)

16天前 • The Figen • 下载视频 0 评论

00:00:45

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The most epic AI panel in a while! We at NVIDIA have gathered ALL 8 authors of "Attention is All You Need" for a panel at GTC, hosted by none other than the GOAT himself, Jensen Huang.
In 2017, 8 researchers had a flash of genius and invented Transformer, the seminal work that…
时政
( twitter.com)

2年前 • Jim Fan 0 评论

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Topkapı Emerald Dagger; also known as Timed Dagger or 4 Emerald Dagger, or Nadir Shah’s Dagger.
Topkapı Dagger, which is considered the most valuable dagger in the world, was started to be made in 1741 CE, by the order of Mahmud I, to be given as a gift to the Iranian Shah Nadir…
时政
( twitter.com)

2年前 • Archaeo - Histories 0 评论

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Arizona just announced that it could take 10-13 days to tabulate all votes…
Taiwan just held their election.
They require photo ID and use paper ballots. They hand-count the votes of each station one by one, in public view. There are no mail ballots.
It’s all done in 6 hours.
时政
( twitter.com)

1年前 • Geiger Capital • 下载视频 0 评论

00:01:25

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My wife is a Mandarin speaker who came here legally to work. She was shocked to see an advert pop up on FB in Mandarin by a UK law firm targeted at those with expired visas who've overstayed in the UK offering services for them to claim asylum using ECHR, specifically Article 8
时政
( twitter.com)

9个月前 • Daniel Cremin 0 评论

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Today I learned, in 2014 Ben Affleck was banned for life from playing blackjack at the Hard Rock Hotel & Casino in Las Vegas after he was caught on camera counting cards at a high rollers table. He was told by security that he was "too good" and had been deemed an advantage
有趣
( twitter.com)

9个月前 • non aesthetic things 0 评论

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Congrats to for releasing Falcon-180B! I applaud every OSS LLM.

Though it’s beyond me why code is only 5% in the training mix. It is by far the most useful data to boost reasoning, master tool use, and power AI agents. In fact, GPT-3.5 is finetuned from a Codex base.

I…
时政
( twitter.com)

2年前 • Jim Fan 0 评论

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It was here where a Navy lieutenant commander by the name of John McCain was shot down in his Skyhawk.

I went to pay my respects. And to remember my friend.

Even though John is not with us, he left us pretty clear instructions: “Believe always in the promise and greatness of…
时政
( twitter.com)

2年前 • President Biden 0 评论

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It has been 60 hours since US debt crossed $33 trillion and it is already up another $50 billion.

That means we have added $833 million in debt PER HOUR since US debt crossed $33 trillion.

If the total US debt were divided by every household in the country, each household would…
时政
( twitter.com)

2年前 • The Kobeissi Letter 0 评论

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In 2013, 5-year-old Jocelyn Rojas was abducted from her front yard by a man in a car who lured her with ice cream.
Fortunately, 15-year-old Temar Boggs and his friend witnessed the incident and decided to take action. They quickly grabbed their bikes and chased after the car.
有趣
( twitter.com)

1年前 • non aesthetic things 0 评论

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ELON: I THINK WE’LL ACHIEVE FULL AND RAPID REUSABILITY OF STARSHIP IN 2026
“We're pretty close to being able to rapidly reuse the booster for Starship.
It comes back and gets caught by the arms, and then the arms place it back in the launch mount.
We still have a little bit of
btc
( twitter.com)

1年前 • Mario Nawfal • 下载视频 0 评论

00:00:56

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BREAKING: "Andrew Tate pointed a gun in a woman's face and said "you're going to do as I say or there'll be hell to pay", according to one of four UK women suing the influencer and self-proclaimed misogynist.
Some of the allegations in the documents seen by the BBC include that
时政
( twitter.com)

11个月前 • Nathan Livingstone (MilkBarTV) 0 评论

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Chinese Police : 1 Lu Pei Wumao : 0
A Lu Pei Wumao trying to do a patriotic livestream but was stopped by a police from Mainland China.
Who are the Lu Peis?
In Taiwan, there are spouses from mainland married to Taiwanese called Lu Pei (陆配)。 Recently in the news some of
时政
( twitter.com)

2个月前 • The Great Translation Movement 大翻译运动 • 下载视频 0 评论

00:00:25

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This guy is not a University of Queensland student. He’s a guy in his 50s who decided to start permanently living in a tent on the Great Court. Last Thursday he assaulted me with no consequences. Today the police had to be called to get him off the roof.
I’m paying $5000 in
时政
( twitter.com)

1年前 • Drew Pavlou 🇦🇺🇺🇦🇹🇼 0 评论

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Imagine,
you support your friend to win the marathon and you support him financially and emotionally to win.
And your friend comes in first in the race.
Then your friend sells you out.
Would you stay calm?
This is the situation Elon Musk is in!
If my friend who I helped win had
有趣
( twitter.com)

9个月前 • The Figen 0 评论