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Element 112

Copernicium is a synthetic chemical element with symbol Cn and atomic number 112. It is an extremely radioactive element, and can only be created in a laboratory. The most stable known isotope, copernicium-285, has a half-life of approximately 29 seconds. Copernicium was first created in 1996 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany. It is named after the astronomer Nicolaus Copernicus.

Comet Halley reaches perihelion

Halley comet reached its closest approach to the sun, the perihelion. Comet Halley is the only known the short-period comet that is regularly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime. It has been observed and recorded since at least 240 BC.

Boeing 747 Jumbo Jet first flight

The Boeing 747 is an American wide-body commercial jet airliner and cargo aircraft often referred to by its original nickname, "Jumbo Jet". The first flight took place on with test pilots Jack Waddell and Brien Wygle at the controls and Jess Wallick at the flight engineer's station.

Rotterdam metro is opened by Princess Beatrix

The Rotterdam Metro is a rapid transit system operated in Rotterdam, Netherlands and surrounding municipalities by RET. The first line called Noord – Zuidlijn opened and ran from Centraal Station to Zuidplein, crossing the river Nieuwe Maas in a tunnel. It was the first metro system to open in the Netherlands. At the time it was also one of the shortest metro lines in the world with a length of only 5.9 km.

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