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 319

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China is a free country. Both members hopefully this time are of the opposite gender.

3月19日，海南三亚一处强拆现场，上百名手持的盾牌的强拆人员在楼下整装待发，而户主们也在楼顶上准备好了石块。随着一声令下，强拆人员向大楼发起进攻，楼上的住户们也不看示弱，纷纷抄起石头朝着“攻城”的强拆人员们砸去，喊杀声此起彼伏。

毛阿敏迪拜酒店密会经纪人互相拥抱痛哭～～😂😂

“官瘾不小” 3月20日，阳江龙源精英学校，为了迎接100天后的中考，竟然举办了规模盛大的阅兵仪式，以鼓舞士气。网友们评论：校长的官瘾真大，不敢想象这是2026年会发生的事情。

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医生朋友说，健身是为了死的更快，更果断！

成都糖酒会就是风向标，今年有多难不用解释了。

#看完了这部乌克兰国防部视频：🇷🇺 俄军入侵士兵平视🇺🇦 乌军FPV无人机。

怎样看一个人的认知高低？

哥斯达黎加当选总统：关闭驻古巴使馆，共产主义摧毁社会

老罗：这么多年了，她还是没打算放过我！

炖肉焯水用冷水还是热水？颠覆你的传统认知！

#乌克兰战报乌克兰国防部视频：一个聪明的俄军士兵。。。。

3月20日，深圳光明区实验学校“中考百日誓师大会”现场，学校让女学生们踩着男生的肩膀爬上两米多高的围墙。网友们表示，这是釜山行吗？举办这样的活动有什么意义呢？还有网友认为，这太危险了，如果发生踩踏摔伤事故怎么办。

活鱼违规“麻醉”乱象频发，“三无”药剂暗藏安全风险记者历时两个多月，跨越多省多地，深入水产市场、生产企业和餐饮门店，在活鱼流通的各个环节上暗访调查，一个让活鱼“休眠”的秘密，浮出了水面。

泼天的流量退去之后景德镇鸡排哥，开始天天出摊卖鸡排了曾经也前呼后拥如明星如今摊位前连个排队的都没有一切又回到了原点～～ 👇

近日，一位网友发出了一段交警在路口盘查电动车的视频，并配上恶狗凶狠怒吼的配音，视频发出后网友们纷纷在弹幕上表示：“这配音太到位了”“这配音形象完美”

3月21日，江苏，一名摆摊母亲的儿子，在得知她的摆摊车被城管收走后，担心地掉下眼泪。母亲安慰孩子：“你看妈妈不是好好的吗？没事的，会好的。” 视频发出后，网友们纷纷在弹幕表示：“遥遥领先”“斩杀线”“秒杀线”

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“远赴人间惊鸿宴，一睹人间盛世颜” 福利真好👍 一群生活不能自理的人，也能开心吃上饭👍 感谢党、感谢政府🙏😂

窦文涛：感恩不是道德问题，是逻辑和智商问题。

論收入而言，現在的日本，坐辦公室的，趕不上搭脚手架的。昭和時代晚期，日本注冊大工（木工）超過百萬，而現在也就20萬左右，走出泡沫經濟后，日本陷入藍領用工荒。

整個國家一大半都是騙子，從習近平到市井混混，無一例外⋯⋯

离谱！AI 开始雇人类打工了，60万人排队接单。最近一个很魔幻的网站火了：Rent a Human。它的模式： AI 当老板，人类接单干活。 AI 在平台发布现实世界任务，比如： - 去某个地方拍照 - 帮忙跑腿买东西 - 现场验证一个地址 - 举牌子拍宣传照 - 人类完成后上传证据， - 系统会用

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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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This morning, it was brought to my attention what appears to me to be explicit (repeated) violations of the oath to defend the constitution coming from a uniformed service member, the public criticism of our commander-in-chief, and overt partisan behavior; there will be swift
btc
( twitter.com)

6个月前 • Matt Lohmeier 🇺🇸 0 评论

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America will not host foreigners who celebrate the death of our fellow citizens.
Visa revocations are under way. If you are here on a visa and cheering on the public assassination of a political figure, prepare to be deported. You are not welcome in this country.
时政
( twitter.com)

6个月前 • Secretary Marco Rubio • 下载视频 0 评论

00:00:34

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A century of conflict, tens of thousands killed, four failing states -- Lebanon, Syria, Iraq, Iran -- and three economies in free fall. All of this is to liberate Palestine from the river to the sea and create an independent Palestine. The date of the creation of Palestine is…
时政
( twitter.com)

2年前 • Hussain Abdul-Hussain 0 评论

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Major News of US Aid to Ukraine Both the Senate and House have announced that they are going to a conference committee on the #NDAA. Both Houses passed #UkraineAid in their versions of the DOD authorization bill, although the Senate number was larger. This means that Ukraine…
时政
( twitter.com)

2年前 • Randy Mott 0 评论

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Do we all remember the time in 1995 that Speaker of the House Newt Gingrich advocated for the United States to resume diplomatic ties with Taiwan? But then, Kissinger: according to Gingrich, "Henry called me and said, 'This is not good.'" Gingrich reversed his stance, on…
时政
( twitter.com)

2年前 • Isaac Stone Fish 0 评论

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The word "Islamophobia" is the Islamists' most effective tool for establishing a caliphate in the West. We must dismantle this word. It is not racist nor bigoted to criticize religion.
Islam is the only major religion that has not been reformed and therefore does not allow…
时政
( twitter.com)

2年前 • Luai Ahmed 0 评论

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Millions of Israelis have to run for the shelters again in a massive rocket strike from Gaza.
Those calling for Israel to stop defending itself NEVER call on Hamas to stop targeting Israeli civilians and never demand a release of hostages.
No country would accept this.
时政
( twitter.com)

2年前 • David Collier 0 评论

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1/4 During his recent speech in Xinjiang, Xi Jinping repeated the directive to 'use culture to lubricate/embellish Xinjiang' [文化润疆]. This amounts to an ongoing process of indigenous cultural erasure and its replacement with the culture/language/norms of the Han centre.
时政
( twitter.com)

2年前 • James Leibold 0 评论

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In this week's China Insider podcast: the original sin of UN Res 2758 and US House's Taiwan Int'l Solidarity Act; singer Dao Lang's new world-record-setting blockbuster song as a giant middle finger to China's snobbish cultural establishment; N China flood and the CCP's callous…
时政
( twitter.com)

2年前 • MilesYu 余茂春 0 评论

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Delighted to receive this T-shirt today from ⁦⁩

While legally #HongKong was handed over to #China 26 years ago, & while #XiJinping’s #CCP is turning #HK into just another Chinese city, in spirit Hong Kong is different - & one day it, along with 🇨🇳, will be free!
时政
( twitter.com)

2年前 • Benedict Rogers 羅傑斯 0 评论

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That obviously indicates that Guo in 2019 was the subject of an FBI counterintelligence investigation, likely related to Guo's ties to Chinese intelligence. Amid questions about whether this guy who got close to Steve Bannon was or is a CCP agent, that is notable piece of info.
时政
( twitter.com)

2年前 • Dan Friedman 0 评论

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Sea ice collapse kills thousands of baby penguins: “We have never seen emperor penguins fail to breed, at this scale, in a single season”😢

When your kids ask what you did to save the emperor penguins, what will you be able to tell them? #NoNewFossilFuels

时政
( au.news.yahoo.com)

2年前 • Sophie McNeill 0 评论

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❗️ Statement from the NEXTA Editorial Board

Apparently 𝕏 sent our account to a shadow ban. This happened after we started covering the military conflict in #Israel.

Even readers who are already subscribed to us can't find our account through the search tab on the platform.…
时政
( twitter.com)

2年前 • NEXTA 0 评论

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Looking at this population density map of the US, I find it really impressive that a collective sense of belonging and national identity was established. The country is big and in a geographical sense divided. The West coast is so far from the eastern population centers.
时政
( twitter.com)

2年前 • Simon Kuestenmacher 0 评论

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[new blog] How to get Wi-Fi password via WPS Button attack using NetHunter

This scenario requires to have physical access to a router with enabled WPS feature or to be in the Access Point surrounding when WPS Push Button is pressed to obtain Wi-Fi pass

时政
( www.mobile-hacker.com)

2年前 • Mobile Hacker • 下载视频 0 评论

00:00:48

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I can't believe I had to announce this:

Israel is issuing an urgent global travel warning for ALL citizens traveling ANYWHERE IN THE WORLD. 🌍

Rethink if foreign travel is really necessary. If you have to go, avoid displaying outward signs of your Israeli or Jewish identity.
时政
( twitter.com)

2年前 • Eylon Levy • 下载视频 0 评论

00:01:34

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I really detest how so many people dehumanise the hostages as though they are not innocents as well. It is possible to be a strong critic of the Israeli government while still keeping space in your heart to recognise the humanity of these innocents. #ReleaseTheHostagesNow
This…
时政
( twitter.com)

2年前 • Drew Pavlou 柏乐志 🇦🇺🇺🇦🇹🇼 0 评论

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Iranian revolutionaries inside Iran are still fighting back. This is a new stamp they started placing on the money of the Islamic Republic stating “death to Khamenei, death to Hamas” alongside a Star of David in what they say is a sign of solidarity with Israel. WATCH:…
时政
( twitter.com)

2年前 • Emily Schrader - אמילי שריידר امیلی شریدر • 下载视频 0 评论

00:00:23

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The SAR government just used its forcefully-passed Art. 23 to revoke my passport. This is on top of the HK$1m bounty based on the Beijing-imposed #NSL in July 2023.
Instead of celebrating X’mas, it’s taking a major step to escalate its transnational repression campaign.
时政
( twitter.com)

1年前 • Anna Kwok 郭鳳儀 0 评论

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🚨🇺🇸 TRUMP: DOGE CAUGHT THEM AND THE JUDGE DOESN'T CARE
"DOGE has found massive amounts of FRAUD, WASTE, INCOMPETENCE, AND ABUSE, but even knowing this, a highly political, activist Judge wants us to immediately make payment, anyway.
In other words pay, even though you know
btc
( twitter.com)

1年前 • Mario Nawfal 0 评论

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On Jan. 3, Patel filed his financial disclosure to the Office of Government Ethics. He signed it under penalty of perjury. This form reports Patel’s $1M-$5M stake in Elite Depot, Ltd — the Cayman Islands holding company for the $50 billion Chinese fast-fashion megacorp SHEIN.
时政
( twitter.com)

1年前 • Roger Sollenberger 0 评论

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🚨 BREAKING: Trump just told a group of governors - Democrats included - they need to switch to paper ballots in their elections and same-day voting.
He also said to verify citizenship to vote and voter ID, and that Elon Musk supports this.
"It's called 'watermark.' It's
btc
( twitter.com)

1年前 • Eric Daugherty • 下载视频 0 评论

00:03:54

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ELON: IF BUREAUCRATS BLOCK THE PRESIDENT’S POLICIES, IT MEANS WE LIVE IN A BUREAUCRACY
“One of the biggest functions of the DOGE team is just making sure that the presidential executive orders are actually carried out.
This is very important because the President is the elected
btc
( twitter.com)

1年前 • Mario Nawfal • 下载视频 0 评论

00:00:28

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Lol. Everyone in Taiwan should read this article.
What does it mean when US defense analysts are describing the war against China as “unwinnable” and urging Washington to limit their involvement to supplying with Taiwan with arms at a distance?
Because we can’t win with you, we
时政
( twitter.com)

1年前 • Angelica 🌐⚛️🇹🇼 0 评论

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The fourth year of the full-scale war in Ukraine started this week. The tension is huge, and the responsibility is gigantic for those who can have an impact on the fates of Ukraine and Ukrainian people.
As President Zelenskyy repeatedly stated throughout the meeting, a ceasefire
时政
( twitter.com)

1年前 • Anton Gerashchenko • 下载视频 0 评论

00:02:37