Where on Earth is the largest known meteorite crater?

Count Alessandro Giuseppe Antonio Anastasio Volta, an Italian physicist, chemist, and a pioneer of electricity and power is credited as the inventor of the electric battery in the early 19th century. The discoverery of methane is also attributed to Count Volta!

Who invented the first battery?

The world’s earliest known surviving motion-picture film, showing actual consecutive action is called Roundhay Garden Scene. It was directed by by French inventor Louis Le Prince in 1888 and although it is only 2.11 seconds long, it is technically a movie and you can watch all 2.11 seconds of it right here:

In 1895, a 50 second film, the Arrival of a Train (image depicted in the title section) showed a locomotive pulling a train into the station at the French  town of La Ciotat. Legend has it that when the film first aired, people were so scared by an image of a train heading right at them, there were screams from the audience most of whom ran to the back of the screening room.

The photograph shown this past Monday (The Oldest Movie) posing the question, is actually one of the earliest attempts at capturing consecutive pictures depicting motion. Though not a true movie, it is a series of photographs known as The Horse In Motion.  It was created in 1878 to try and answer the question: are all four of a galloping horse’s hooves are off the ground at the same time?  The individual photographs were assembled into one “motion” picture – one of the first attempts to visually capture movement in a single medium.

What is the oldest known motion picture?

In addition to being an explosive, nitroglycerine can and has been used to treat certain types of heart ailments? It dilates the blood vessels.