World appears on track for even more dangerous Cold War 2.0
3 天之前 · China has significantly picked up the pace of expanding its nuclear arsenal in recent years, a development that increases the likelihood a new arms race will begin revving up, one that could be more dangerous than the Cold War contest between Russia and the U.S., according to two-time Pulitzer Prize-winning journalist David Hoffman.. In a talk on Tuesday, sponsored by …
Thermonuclear weapon - Wikipedia
A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lower mass, or a combination of these benefits.
Thermonuclear bomb | History, Principle, Diagram, Yield, Effects ...
2024年9月14日 · Thermonuclear bomb, weapon whose explosive power results from an uncontrolled self-sustaining chain reaction in which isotopes of hydrogen combine under high temperatures to form helium in a process known as nuclear fusion.
Nuclear warfare - Wikipedia
To date, the only use of nuclear weapons in armed conflict occurred in 1945 with the American atomic bombings of Hiroshima and Nagasaki. On August 6, 1945, a uranium gun-type device (code name "Little Boy") was detonated over the Japanese city of Hiroshima.
Here's How Bad a Nuclear War Would Actually Be | TIME
2023年6月29日 · W e know that an all-out U.S.-Russia nuclear war would be bad. But how bad, exactly? How do your chances of surviving the explosions, radiation, and nuclear winter depend on where you live?
Nowhere to hide: How a nuclear war would kill you—and almost …
2022年10月20日 · Global ocean temperature decrease will be the greatest starting three to four years after a nuclear war, dropping by approximately 3.5 degrees Celsius for an India-Pakistan war (that injected 47 Tg of smoke into the stratosphere) and six degrees Celsius for a global US-Russia war (150 Tg).
Opinion | Nuclear War: The Rising Risk, and How We Stop It - The …
2024年3月7日 · In the fall of 2022, a U.S. intelligence assessment put the odds at 50-50 that Russia would launch a nuclear strike to halt Ukrainian forces if they breached its defense of Crimea. Preparing for...
Fact Sheet: Thermonuclear Weapons - Center for Arms Control …
2022年11月18日 · Thermonuclear weapons, sometimes referred to as Hydrogen, or “H-bombs,” utilize both atomic fission and nuclear fusion to create an explosion. The combination of these two processes releases massive amounts of energy, hundreds to thousands of times more powerful than an atomic bomb.
How a small nuclear war would transform the entire planet - Nature
2020年3月16日 · This week, researchers report that an India–Pakistan nuclear war could lead to crops failing in dozens of countries — devastating food supplies for more than one billion …
As Russia Digs In, What’s the Risk of Nuclear War? ‘It’s Not Zero.’
2022年3月16日 · As Russia and NATO escalate their standoff over Ukraine, nuclear strategists and former U.S. officials warn that there is a remote but growing risk of an unintended slide into direct conflict —...