The Gilbert U-238 Atomic Energy Laboratory set is referred to as the "world's most dangerous toy," according to the Interesting Engineering portal. The set has just been put up for auction ...

Nuclear reactors that use heavy water can employ a form of uranium commonly found in nature (U-238) rather than requiring so-called enriched uranium, which contains a higher percentage of easily ...

Today, the Gilbert U-238 set is considered extremely rare. It was produced only in the years 1950 and 1951, and fewer than 5,000 units were sold in total. The set is not only exceptionally rare ...

In its natural state, it consists of three isotopes (U-234, U-235 and U-238). Other isotopes that cannot be found in natural uranium are U-232, U-233, U-236 and U-237. The table below shows the ...