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Fastest object there ever was: The fastest manmade object isn't a hypersonic jet or spacecraft, but a large manhole cover.... When the US started doing underground nuclear testing, nobody really knew what would happen. One test bomb was placed at the bottom of a 485-foot deep shaft on July 26, 1957, and someone thought it was a good idea to put a half-ton iron manhole cover on top to contain the explosion. The bomb turned the shaft into the world's largest Roman candle, and the manhole cover was nowhere to be found. Robert Brownlee, an astrophysicist who designed the test, wanted to repeat the experiment with high-speed cameras so he could figure out what happened to the cover. So another experiment was created, this time 500-feet deep, and a similar half-ton manhole cover was placed on top. On August 27, 1957, they detonated the bomb. The high-speed cameras barely caught a view of the cover as it left the top of the shaft and headed into oblivion. Brownlee used the frames to calculate the speed to be more than 125,000 miles per hour.... more than five times the escape velocity of the Earth, and the fastest man-made object in history. Physicists have debated the whereabouts of the two manhole covers ever since. Recently, with the help of supercomputers and a lot more scientific knowledge, physicists are certain that they wouldn't have had time to burn up completely before exiting the atmosphere. This means both of the remaining pieces would have passed Pluto's orbit sometime around 1961 and are way beyond the edge of the solar system by now. :-) Fastest object there ever was

Fastest object there ever was

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When r/sino mods censors you for asking a question because there are protests somewhere else!: 18:07 38 % Free You've been permanently banned from participating... Sino 35m You have been permanently banned from participating in r/Sino. You can still view and subscribe to r/Sino, but you won't be able to post or comment. Note from the moderators: All your posts automatically removed LOL. Just fyi. Ferguson 2017 Nuclear testing at Bikini Atoll 比基尼环礁的核试验 Charlotte riots 夏洛特暴动 Shooting of Alton Sterling and Philando Castile 顿斯特林和菲兰多卡斯蒂利亚的射击 death of Eric Garner, Oakland California 奧克兰奥克兰市埃里克加 Opertion Condor Occupy WallStreet 占领华尔街 My Lai Massacre我的大屠杀 1992 Washington Heights riots 1992 9 Jeju uprising Colfax massacre 斯大屠杀 Redwood Massacre 红木大屠杀 Columbine Mine Massacre Guantanamo Bay B No Gun Ri Massacre E A. Rodney King riots 洛杉矶罗德尼:金暴动 1979 Greensboro Massacre 1979年格林斯伯勒大屠杀 Lattimer massacre Ludlow massacre Everett massacre Reading Railroad massacre 阅读铁路大屠杀 If you have a question regarding your ban, you can contact the moderator team for r/Sino by replying to this message. Reminder from the Reddit staff: If you use another account to circumvent this subreddit ban, that will be Reply to the Message When r/sino mods censors you for asking a question because there are protests somewhere else!

When r/sino mods censors you for asking a question because there are protests somewhere else!

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My class is full with intellectuals: What environmental problems are on our planet? Thanks! Type another answer here... Submit 40 characters remaining reaf bleaching forks habitats destroyed destroying the forest man made disasters amazon rainforest animal slaughter rising temperature melted ice caps #savetheturles cars trash islands oil digging vsCo Carbon dioxide Oil usage animal extinction all ecosystems are dyingall society over population greenhouse shell plastic in ocean gases O-Zone industries ecosystems a dump pest control disposil wild fires black earth is suffering caltex rising sea levels waitomo floods vsCo girls and i oop adioop sksksksk carbon emissions VSCO girls and gas VSCO girls oop and iopp and oop qndioop quoters cow farts coal sksksksks deforestation palm oil recycling fails diesal Water pollution rubbish toxic gases animals marine sksk extinction ecosystems hydroflasks andioop- straws aredying sksksksks islands sinking fish spoons Ocean oil oil drilling plastic pollution plastic straws litter eating animals animals are crabs protest trash dying air pollution trump pollution moana petrol shrimp all ecosyştems are dying sea animals gas petrol cars cigarette butts extinct animals overfishing america greed oil oil spillages eConomy landfills high sea levels nonbelievers noice caps humans bp more death oil spills global warming littering plastic gull vsco girls greede livestock Z the turtles got sksks squished girls palm oil production fossil fuels sea level rise consumerism habitat loss fuel soil degradation poaching polar bears money #savetheturtles climate change plastic production droughts trash beaches death forest depletion Plastic food oil slicks nuclear testing VSCO girl forest fires billionaires rubbish hurting animals smoke meltong ice caps technological evolution factories non-believers carbon emission climate crisis army evaluation Save teh turtles melting ice caps polluyion homosapiens dairy industry destroyed habitats animals eating rubbish disposal pelicans livestock industry cattle farming earth in 3 seconds not using reusable plastic bags electricity usage infrastructure My class is full with intellectuals

My class is full with intellectuals

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Peace Corps Kazakh guide, thankfully not my only Kazakh learning material: In the early seventeenth century Russians first penetrated into the Kazakh steppes. It took nearly two hundred conquest, since the Russians were opposed at every step of their advance by their brave agin (oral poets). After the conqest, there were numerous uprisings. One major revolt against Russian rule took place in 1916, when the Kazakh were joined by the Kirghiz, Uzbeks and all other Turkic peoples of Russian-occupied Central Asia. Each uprising was met with mass killings and deportations. The Soviet regime, established in 1917, not only continued the colonial policies of the Russian Empire but employed even more brutal methods, depriving the Kazakh nomads of their culture and language years to complete their Until 1929, most Kazakhs remained nomadic, although their seasonal movements had been restricted due to land seizures benefittin Russian settlers. Then, in 1930, Stalin enforced his policy of collectivization throughout the Soviet Union. For the Kazakhs this policy meant first sedentarization and then collectivization. The h arsh measures taken to separate the Kazakhs from their horses and sheep and to move them into re-education camps, resulted in near-genocide. Within two years the Kazakhs lost over half of their population, their numbers reduced from four million to less than two million. After the great famine of 1932, only small groups of Kazakhs managed to cross with their herds into Xinjiang, where they continued their way of life. The persecution continued. Between 1937 66,000 Kazakh intellectuals poets and writers were put to death on Stalin's orders. Again, during World War and the years thereafter, Kazakhs perished in large numbers, not only on the battlefields, but also in prison camps and at home from starvation. The suffering of the Kazakh people was mathed by equally harsh attacks on the environment. The Soviet's systematic exploitation of the natural resources of Kazakhstan led to a depletion of land and water resources. Large regions of Kazakhstan, such as the Aral Sea region, have become environmental disaster areas. Without regard for the life or health of the population, several regions in Kazakhstan (Semipalatinsk, Sariarqa) were turned into nuclear testing grounds Desnite this history of nearly 300 vears of continuous deprivation and Peace Corps Kazakh guide, thankfully not my only Kazakh learning material

Peace Corps Kazakh guide, thankfully not my only Kazakh learning material

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i know it wasn’t but just for the meme: History teacher: sputnik was the first man made object in space me: Operation Plumbbob YA Operation Plumbbob was a series of nuclear tests conducted between May 28 and October 7, 1957, at the Nevada Test Site, following Project 57, and preceding Project 58/58A." It was the biggest, longest, and most controversial test series in the continental United States. (citation needed] Contents v Operation Plumbbob * Background The operation consisted of 29 explosions, of which only two did not produce any nuclear yield. Twenty-one laboratories and government agencies were involved. While most Operation Plumbbob tests contributed to the development of warheads for intercontinental and intermediate range missiles, they also tested air defense and anti-submarine warheads with smaller yields. They included forty-three military effects tests on civil and military structures, radiation and bio-medical studies, and aircraft structural tests. Operation Plumbbob had the tallest tower tests to date in the U.S. nuclear testing program as well as high-altitude balloon tests. One nuclear test involved the largest troop maneuver ever associated with U.S. nuclear testing. Plumbbob Priscilla Approximately 18,000 members of the U.S. Air Force, Army, Navy and Marines Information participated in exercises Desert Rock VII and VIII during Operation Plumbbob. Country United States The military was interested in knowing how the average foot-soldier would Test site NTS Area 12, Rainier stand up, physically and psychologically, to the rigors of the tactical nuclear Mesa battlefield. i know it wasn’t but just for the meme

i know it wasn’t but just for the meme

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According to U.S. Secretary of State, Mike Pompeo, North Korea will allow other nations to inspect Punggye-ri, a dismantled nuclear testing site. Pompeo met with North Korean leader Kim Jong-Un on Sunday to discuss denuclearization and a second summit between Kim and President Donald Trump. He described his visit to Pyongyang as “another step forward” to denuclearizing the Korean Peninsula. The United States has called for an inventory of North Korea’s nuclear weapons, which the country has not yet agreed to. ___ President Trump applauded Pompeo’s meeting with Kim on Twitter stating, “Progress made on Singapore Summit Agreements! I look forward to seeing Chairman Kim again, in the near future.”: WORLD NEWS NK DENUCLEARIZATION Oct 8 | North Korea will allow other nations to inspect a dismantled nuclear test site. According to U.S. Secretary of State, Mike Pompeo, North Korea will allow other nations to inspect Punggye-ri, a dismantled nuclear testing site. Pompeo met with North Korean leader Kim Jong-Un on Sunday to discuss denuclearization and a second summit between Kim and President Donald Trump. He described his visit to Pyongyang as “another step forward” to denuclearizing the Korean Peninsula. The United States has called for an inventory of North Korea’s nuclear weapons, which the country has not yet agreed to. ___ President Trump applauded Pompeo’s meeting with Kim on Twitter stating, “Progress made on Singapore Summit Agreements! I look forward to seeing Chairman Kim again, in the near future.”

According to U.S. Secretary of State, Mike Pompeo, North Korea will allow other nations to inspect Punggye-ri, a dismantled nuclear testi...

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nuclear testing: THE WHITE HOUSE WASHINGTON May 24, 2018 His Excellency Kim Jong Un Chairman of the State Affairs Commission of the Democratic People's Republic of Korea Pyongyang Dear Mr, Chairman: We greatly appreciate your time, patience, and effort with respect to our recent negotiations and discussions relative to a summit long sought by both parties, which was scheduled to take place on June 12 in Singapore. We were informed that the meeting was requested by North Korea, but that to us is totally irrelevant. I was very much looking forward to being there with you. Sadly, based on the tremendous anger and open hostility displayed in your most recent statement, I feel it is inappropriate, at this time, to have this long-planned meeting. Therefore, please let this letter serve to represent that the Singapore summit, for the good of both parties, but to the detriment of the world, will not take place. You talk about your nuclear capabilities, but ours are so massive and powerful that I pray to God they will never have to be used. I felt a wonderful dialogue was building up between you and me, and ultimately, it is only that dialogue that matters. Some day, I look very much forward to meeting you. In the meantime, I want to thank you for the release of the hostages who are now home with their families. That was a beautiful gesture and was very much appreciated. If you change your mind having to do with this most important summit, please do not hesitate to call me or write. The world, and North Korea in particular, has lost a great opportunity for lasting peace and great prosperity and wealth. This missed opportunity is a truly sad moment in history Sii cerely vo irs ld J. Trump Dona President of the United States of America
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