At approximately 2:50 PM EDT, 14 April 2013, the first device was detonated. The second exploded approximately 12 seconds later about a block and a half away.
The second bomb at the Boston Marathon was detonated about 12 seconds after the first bomb on April 15, 2013. The bombs were set off near the finish line of the race, causing significant damage and casualties.
Simple ,a bomb blew up then another and finnaly a fireSeveralexplosionsoccurredtoday at the Boston Marathon. Several people were killed.
Yes, two bombs exploded near the finish line of the Boston Marathon this year.
Yes, it seems two did and a third was found.
The first atomic bomb detonated was not dropped, it was hung from the top of a steel structure and detonated remotely.
Martin Richard died in the blast when the bomb went off at the Boston Marathon. His mother was also injured and had to undergo brain surgery, while his sister lost a leg in the blast.
A dirty nuclear bomb is detonated by using a conventional explosive. It disperses a large amount of nuclear material across the area.
USSR
It is not , if it is not detonated and it is properly maintained.
Boston Marathon was created in 1897.
I assume you mean "Soviet bomb" - The Tsar Bomba (Царь-бомба) was detonated on October 30, 1961, in the Novaya Zemlya archipelago. It was the largest, most powerful nuclear weapon ever detonated.
The Tsar Bomba, the largest nuclear bomb ever detonated, was tested by the Soviet Union on October 30, 1961. It had a yield of approximately 50 megatons and was detonated above the Arctic Circle.