Nuclear Power

The Atomic Energy Lab set was only available from 1951 to 1952 and sold for a whopping $50 (that's without inflation).

The set came with four types of uranium ore, a beta-alpha source (Pb-210), a pure beta source (Ru-106), a gamma source (Zn-65?), a spinthariscope, a cloud chamber with its own short-lived alpha source (Po-210), an electroscope, a geiger counter, a manual, a comic book (Dagwood Splits the Atom) and a government manual "Prospecting for Uranium."

Now I know what they did with nuclear waste back then. 

We could do it again now, instead of making depleted Uranum bombs :)

maybe more Dr Manchatans will show up!!!