This is a demonstration of the conservation of angular momentum using a Hoberman sphere, a plastic sphere frame that can be contracted by pulling on a string [📹 Dr. Boyd Edwards] , page 143

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This is a demonstration of the conservation of angular momentum using a Hoberman sphere, a plastic sphere frame that can be contracted by pulling on a string

[📹 Dr. Boyd Edwards]

有趣
( twitter.com )

1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 Russian Defense Ministry reports that during a visit to Vladivostok International Airport, Shoigu showed Kim Jong Un the Kinzhal and Kalibr missile systems used by Russia to attack Ukraine.

X-BD missiles were also demonstrated.

Then, Kim Jong-un and Shoigu arrived at the…
时政
( twitter.com)

1年前 • Anton Gerashchenko • -- 点击 • 下载视频 0 评论

00:00:23

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Ukraine gave up its third largest nuclear arsenal. The world then decided Russia should become a keeper of such power. Yet, history shows it was Russia who deserved nuclear disarmament the most. And Russia deserves it now – terrorists have no right to hold nuclear weapons.
时政
( twitter.com)

1年前 • Volodymyr Zelenskyy / Володимир Зеленський • -- 点击 0 评论

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🚨 Chinese warships & aircraft carrier gather east of Taiwan for major naval exercises:

- 20 ships deployed nearby, a new daily record
- 2x Surface Action Groups likely to link up
- Massing forces at coastal military bases
- Never-before-seen flight paths

Live updates below.
时政
( twitter.com)

1年前 • Ian Ellis • -- 点击 0 评论

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BREAKING: Legendary actor Sean Penn brutally destroys Donald Trump and anyone who plans on voting for him in 2024 — and mocks the now infamous mugshot of the disgraced ex-president.

In a new interview with Variety, Penn bluntly stated that it would be "awful, embarrassing,…
时政
( twitter.com)

1年前 • Occupy Democrats • -- 点击 0 评论

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It was great to speak with you, General Secretary.

As I said earlier, Vietnam and the United States have an enormous opportunity to be critical partners. I know we can achieve the aspiration both countries share for a future of greater peace, security, and prosperity.
时政
( twitter.com)

1年前 • President Biden • -- 点击 0 评论

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Time between borders reopening and bottom in housing prices

Australia - 12 months
NZ - 10 months
Canada - 9 months (from ramp up of immigration to above pre-Covid levels)

High immigration during a rental crisis seems to be the secret sauce for supporting house prices
时政
( twitter.com)

1年前 • Tarric Brooker aka Avid Commentator 🇦🇺 • -- 点击 0 评论

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"So if you want to make it personal for the CCP’s top dogs, put Xi and his associates in a position where they have to 'explain themselves' and their fabulous wealth – much of which they’ve moved overseas, ironically beyond the reach of the CCP itself."
时政
( www.foxnews.com)

1年前 • Andreas Fulda 🇺🇦 🇹🇼 • -- 点击 0 评论

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Ukrainian pilot Vladyslav "Nomad" Saveliev.

He had two years of flight training in the US since 2021. When the full-scale invasion began, Vladyslav was desperate to return to Ukraine and defend his country.

On 2 June 2023 Vladyslav's plane suffered a fatal fire attack.…
时政
( twitter.com)

1年前 • Anton Gerashchenko • -- 点击 • 下载视频 0 评论

00:00:29

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The story of Brian Schmidt, the physicist who bet with his colleague Sean Carroll that we wouldn’t know the value of the cosmological density parameter within 20 years. He lost the bet by figuring it out himself, which earned him a Nobel prize [read more: ]
有趣
( buff.ly)

1年前 • Massimo • -- 点击 0 评论

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The story of Tsutomu Yamaguchi, the man who survived the Hiroshima bombing. Despite the explosion left him blind & burned, he jumped on a train to Nagasaki, arriving just in time for the second bomb 78 years ago #Today.

He survived that one too

[story: ]
有趣
( buff.ly)

1年前 • Massimo • -- 点击 0 评论

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You will not hide neither your secrets and yourself. There will be more explosions, Moscow.

At the secret factory in Zagorsk, where they feverishly assemble optics for tanks in three shifts, a colossal explosion occurred. And what do you know? According to the propaganda…
时政
( twitter.com)

1年前 • Bandera Fella *-^ • -- 点击 • 下载视频 0 评论

00:00:09

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Coexistence in harmony, Xinjiang County新绛县, Northern China’s Shanxi Province.
The pagoda of Longxing Temple, originally built in Tang Dynasty, a unique symbol of the ancient city, and the church was built in 1937, one of the four famous Gothic churches in China.
时政
( twitter.com)

1年前 • China in Pictures • -- 点击 • 下载视频 0 评论

00:00:19

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The story of William Walker, the diver who worked six hours a day from 1906 to 1912 in total darkness at depths up to 6 meters to put down 25,800 bags of concrete, 114,900 concrete blocks, and 900,000 bricks to save the Wincherster catherdal's foundation
有趣
( buff.ly)

1年前 • Massimo • -- 点击 0 评论

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There's no better place than Camp David to hold today's historic trilateral discussion with Japan and the Republic of Korea.

Today represents the culmination of two years of work and a stronger future of cooperation – for our security, for our diplomacy, for our economies.
时政
( twitter.com)

1年前 • President Biden • -- 点击 0 评论

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所以PLAAF的瞄准吊舱跟丢了一条船？（而且爆炸画面也是拼接的）

这是之前解密的，2015年时，美国海军F/A-18上的AN/ASQ-228 ATFLIR吊舱锁定跟踪UAP（现在对于UFO的美国官方称呼）的画面（这UAP的飞行速度极快）

当时这架F/A-18拦截这UAP时的飞行高度约为 25000 英尺，速度为0.61马赫
时政
( twitter.com)

1年前 • 艾布拉姆斯🇺🇸💙💛 • -- 点击 • 下载视频 0 评论

00:00:33

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The story of how, in 1985 and in the midst of the cold war, US President Ronald Reagan and USSR President Mikhail Gorbachev made a pact to pause the Cold War and have their militaries join as one if an alien invasion ever happened

[read more: ]
时政
( buff.ly)

1年前 • Massimo • -- 点击 0 评论

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🇬🇧 UNITED KINGDOM

- Grounding of planes leaving and flying to the UK amid air traffic control systems failure

- NATS, the national air traffic controllers, says it has applied 'traffic flow restrictions to maintain safety'

- Loganair has posted on X: 'There has been a…
时政
( twitter.com)

1年前 • The Spectator Index • -- 点击 0 评论

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I held a meeting of the National Security and Defense Council.

It concerned the military medical commissions. The results of the inspection of the entire MMC system across the country. The reports on the violations found. The steps to prevent any corruption in the MMC field.…
时政
( twitter.com)

1年前 • Володимир Зеленський • -- 点击 0 评论

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GABON

- Military officers say they have seized power, vowing to close borders and dissolve state institutions

- Comes hours after state election body announced Ali Bongo had won a third term with 64% of the vote

- Ali Bongo has been in power for 14 years, succeeding his father…
时政
( twitter.com)

1年前 • The Spectator Index • -- 点击 0 评论

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Jeffrey Clark, top Trump Justice Department official who was indicted with Trump and 17 others in Georgia, has turned on Trump. Clark’s lawyer told the court:

“Clark drafted a letter to top Georgia officials declaring that the agency had reason to doubt the legitimacy of the…
时政
( twitter.com)

1年前 • Mike Sington • -- 点击 0 评论

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North Korean leader Kim Jong Un on Tuesday was seen emerging from an armored train in Russia, his first trip abroad in more than four years.

State media reported that he met with Russia’s Natural Resources Minister ahead of a closely watched summit with Vladimir Putin.
时政
( twitter.com)

1年前 • The Moscow Times • -- 点击 • 下载视频 0 评论

00:00:32

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#Syrian dictator Bashar al-Assad wants to crown himself

The Elaf newspaper reported that the dictator of Syria wants to change the system of government in the country to a republican monarchy.

Assad thus wants to ensure the safety of his family and the unimpeded transit of…
时政
( twitter.com)

1年前 • NEXTA • -- 点击 0 评论

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BREAKING: Mass illegal crossing of well over 1,000 migrants into Eagle Pass, TX taking place right now, w/ many of them telling me they are from Venezuela. Others telling my producer they just arrived on a train in MX. Many still in water crossing. MASSIVE group.
时政
( twitter.com)

1年前 • Bill Melugin • -- 点击 0 评论

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The iPhone 15 Pro and iPhone 15 Pro Max are expected to replace the Mute Switch with an Action Button that could be programmed with some of the following actions:

- Silent mode on/off
- Turn flashlight on/off
- Run a shortcut
- Start Voice Memo
- Accessibility
- Launch Camera…
时政
( twitter.com)

1年前 • Apple Hub • -- 点击 0 评论

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L'#11settembre del 2001 non rappresenta solo una data che devastò il cuore degli Stati Uniti d'America. Quel giorno ad essere colpito fu l'intero Occidente e, con esso, i valori fondanti della nostra libera civiltà, della nostra storia e della nostra cultura.

A distanza di 22…
时政
( twitter.com)

1年前 • Giorgia Meloni • -- 点击 0 评论

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