1 All brake components are contained within the confines of the drum.  You could get a car with drums on all 4 wheels until the early 1970âs. Now, youâll usually see drums on the rear axles of economy cars and trucks.
The largest nuclear explosion was the great âTsar Bombaâ. The bomb was tested on October 30, 1961, in Novaya Zemlya, an archipelago in the Arctic Sea. Originally planned to be 100 megatons, it was actually scaled down to 50 megatons due to technical problems with detonation and due to concerns with fallout.he explosion was equal to 1,400 times the combined power of the two atomic bombs used in WW2. It would have caused 3rd degree burns 62 miles away and the mushroom cloud was 7 times higher than Mount Everest. The explosion could be seen and felt in Finland.
On 6 August 1945, the U.S. Army Air Forces detonated a uranium gun-type fission bomb over the Japanese city of Hiroshima; three days later, on 9 August, the U.S. Army Air Forces detonated a plutonium implosion-type fission bomb codenamed  Fat Man  over the Japanese city of Nagasaki. thermonuclear weapon weighing little more than 2,400 pounds (1,100 kg) can produce an explosive force comparable to the detonation of more than 1.2 million tons (1.1 million tonnes) of TNT. A nuclear device no larger than traditional bombs can devastate an entire city by blast, fire, and radiation.