The negotiations between the American president Donald Trump, and North Korean leader Kim Jong-un walked yesterday earlier than expected. The biggest stumbling block? The nuclear weapons programme of North Korea. Even though the country itself is quite secretive about it, the international community seeks the nuclear activities of North Korea on the foot to follow with the help of some scientific tools. That works pretty.

Also without the cooperation of North Korea, we are (fairly) well informed of the number and type of nuclear weapons that North Korea possesses. Pretty good, because the estimates are twenty to even sixty nuclear weapons is very diverse. The techniques for the estimates used are, in fact, are not infallible and often serve a different utility than the mocking of North Korean nuclear weapons. the

these techniques show in the past that the promises of North Korea at odds with the implementation of their program. So Kim Jong-il, the father of Kim Jong-un, in 2005, finally admit that his country is a few atomic bombs possessed. Then, he signed an international agreement in which he promised to the North Korean nuclear programme for what it was. Empty words because even a year later tested the country’s first nuclear bomb.

also Read What we know about Kim Jong-un (and what we all don’t know) Nuclear tests

Such tests can scientists – with the help of a few handy devices – from a distance follow-up. Although North Korea may have hoped that the USA, their test would not notice, both above – and underground, the explosions easily monitored. Above ground, scientists use infrageluidsmetingen vibration and popping up.

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