Sentences with phrase «largest nuclear tests»

The team compared these recovering communities with observations made in 1968 before the largest nuclear tests.

Yesterday, the UN Security Council imposed fresh sanctions against North Korea a week after it conducted its sixth and largest nuclear test to date.

Not exact matches

Every person alive on the 71st anniversary of those attacks holds in their flesh radioactive remnants of the nuclear era — a period centered in the early decades of Cold War when nuclear nations conducted atmospheric tests of ever - larger bombs.

Castle Bravo, detonated on February 28, 1954, was the first of the Castle series of tests and the largest US nuclear blast of all time.

Within 20 years, the US and USSR tested nuclear weapons larger than 10 megatons, or 10 million tons of TNT.

Scenes of Moon and Kim joking and walking together marked a striking contrast to last year's barrage of North Korean missile tests and its largest ever nuclear test that led to sweeping international sanctions and fears of a fresh conflict on the Korean peninsula.

North Korea's sixth nuclear test — probably its largest so far — sends out one clear political signal.

In 2005 Congress asked NASA to extend its survey to include objects as small as 460 feet (140 meters) across — not dinosaur - killers but still big enough to outdo the largest nuclear weapon ever tested if they ever cross paths with Earth.

When it comes to radiation, the nuclear weapons testing conducted from the 1940s to the 1980s contributed orders of magnitude more radioactivity to the oceans than Fukushima (even when combined with Chernobyl, a much larger nuclear catastrophe).

Researchers used data from sensors designed to detect clandestine nuclear tests, among other sources, to identify airbursts with an energy equivalent to or larger than that released by 1 kiloton of exploding TNT.

The impact that produced the crater was two million times more powerful than the largest nuclear device ever tested, a 58 - megaton hydrogen bomb known as Tsar Bomba, detonated by the Soviet Union in 1961.

Also on view is a 2016 large format black - and - white photograph from Charriére's First Light series, which examines the long - term devastation of Bikini Atoll by American nuclear testing between 1946 and 1958.

Documented since at least the 1920s, induced seismicity also has been attributed to a number of other human activities, including impoundment of large reservoirs behind dams, geothermal projects, mining extraction, construction and underground nuclear tests.

The HAARP has subsequently become a target for those who have suggested that it could be used to test the ability «to deliver very large amount of energy, comparable to a nuclear bomb, anywhere on earth», CHANGING WEATHER PATTERNS, blocking all global communications, disrupting human mental processes and mind control, causing earthquakes, and «x-raying» the earth.

Study: Radar imaging shows how the mountain collapsed after North Korea's most recent nuclear test As North Korea's president pledges to «denuclearize» the Korean peninsula, an international team of scientists is publishing the most detailed view yet of the site of the country's latest and largest underground nuclear test on Sept. 3, 2017.

Examples include refining ways to securely handle radioactive waste from nuclear reactors; testing repositories for carbon dioxide captured at power plants; and, perhaps more important, improving the electricity grid so that it can manage large flows from intermittent sources like windmills and solar panels.

As North Korea's president pledges to «denuclearize» the Korean peninsula, an international team of scientists is publishing the most detailed view yet of the site of the country's latest and largest underground nuclear test...