The first balloon was invented by Brazilian priest Bartolomeu de Gusmão , and the first public exhibition was to the Portuguese Court on August 8 , 1709 , in the hall of the Casa da India in Lisbon
Helium however was invented by Sir Norman Lockyer. He taught at the Royal College of Science and specialised in studying the sun. His investigations into sun spots resulted in his discovery of the element that he named "helium'.
more at http://www.balloonprofessional.co.UK/balloon_directory/article.php?id=7
who invented hydrogen?
That would be the Hindenburg if I'm not mistaken.
Hydrogen is used in weather balloons because they are very light which help the balloon to float or fly easily.
The discovery of hydrogen peroxide (H2O2) was by ThΓ©nard in 1818.
hot air balloon
Hydrogen was not invented. For those who believe in Big Bang Theory, it was created during that event. It was discovered by Henry Cavendish, a British scientist in 1766.
he invented the hydrogen air balloon
Hydrogen atoms are less dense than the air, therefore hydrogen balloon rises in air.
in a balloon and in a hydrogen car
A hot air balloon doesn't contain helium or hydrogen.
He invented The hydrogen Balloon, http://www.biography.com/articles/Charles-Jacques-Alexandre-C%C3%A9sar-9244979
A balloon with CO2 instead of helium or hydrogen
There is the weather balloon, and the zeppelin. Both use Helium, and no longer Hydrogen due to hydrogen's tendency to quickly catch fire.
hydrogen
Hydrogen is lighter than helium. So hydrogen balloon will float better than helium.
A hydrogen balloon will deflate the fastest because molecules of hydrogen are the smallest and thus will more easily slip through the latex of the balloon. The carbon dioxide-filled balloon will deflate the slowest because these molecules are the biggest, and thus will have more trouble escaping the tiny pores in the balloon.
beecause hydrogen is less dense and light then air , easy to fly..the hydrogen in the balloon is lighter than the air outside of it.density of hydrogen is lower than air
If the balloon were lofted by hydrogen, it would not be a "hot air" balloon, as no heat would be needed. Indeed, to get even a spark near the hydrogen would be for the balloon to go up in a huge fireball. Hydrogen was abandoned as a lift gas for lighter -than-air craft in the 1930's, exactly for that reason.