Dirigibles were not used in Ww2 London. Barrage balloons however were. See Related Links below.
The element that is used in the Goodyear blimp and other dirigibles is helium. This gas is lighter than air and causes the blimp to rise.
It might be Helium.....symbol He. But I'm not sure.
Cars, trucks, ships, dirigibles, animals, walking.
Count Ferdinand von Zeppelin invented the first practical dirigibles in the late 1800's but he didn't fly the first ones till about 1910. There were previous balloons called dirigibles, but they did not have a frame.
Dirigibles is pronounced as "dir-i-juh-buhls" with the emphasis on the second syllable.
What are the two famous dirigibles
Dirigibles are lighter-than-air aircraft that can be maneuvered by their own power. There are different kinds of dirigibles, such as blimps and airships, but all are distinguished from other lighter-than-air craft, such as balloons, which do not have their own steering and power sources.
dogs, dirigibles.
Ferdinand von ZeppelinFerdinand von Zeppelin
tutty
One of the original purposes was to be a mooring mast for dirigibles/blimps but it was rarely (if ever) used as that..