Who invented the electric light bulb in 1879?

Who invented the electric light bulb in 1879?

1879: Thomas Edison crowns 14 months of testing with an incandescent electric light bulb that lasts 13½ hours. Sir Humphry Davy had produced incandescent electric light in 1808 by passing battery current through a platinum wire. But the voltaic pile was expensive and could be messy.

What year were the hippies?

It has been estimated that 100,000 people travelled to San Francisco during the summer of 1967. The media followed the movement of the hippies casting a spotlight on the Haight-Ashbury district where many of the psychedelic bands lived and played.

Who owns all the land in Canada?

All physical land in Canada is the property of the Crown, Queen Elisabeth 11. There is no provision in the Canada Act, or in the Constitution Act 1982 which amends it, for any Canadian to own any physical land in Canada.

What was Power Rangers based on?

The series that began the franchise, Mighty Morphin Power Rangers (an American adaptation of the 1992 Japanese Super Sentai Series, Kyōryū Sentai Zyuranger), began broadcasting as part of the Fox Kids block of programing that aired on the Fox network. It lasted for three seasons (from 1993 to 1996).

How can you keep from crying while cutting onions?

Cutting onions irritates the lachrymal glands, causing them to excrete tears. Chewing gum while cutting onions prevents tears by forcing you to breathe through your mouth. This disperses the irritant so that a significantly smaller amount reaches the lachrymal glands, preventing them from being irritated enough to release tears.

How many vertebrae are in the neck?

Cervical vertebrae are those in the neck area. With the exception of the two sloth genera (Choloepus and Bradypus) and the manatee genus, (Trichechus), all mammals have seven cervical vertebrae.

When was Mork and Mindy on the air?

Mork & Mindy is an American sitcom broadcast from 1978 until 1982 on ABC. It stars Robin Williams as Mork, an extraterrestrial alien who comes to Earth from the planet Ork in a small, one-man egg-shaped spaceship. Pam Dawber co-stars as Mindy McConnell, his human friend and roommate.

Where are avocados originated from?

The avocado (Persea americana) is a tree native to Mexico and Central America, classified in the flowering plant family Lauraceae along with cinnamon, camphor and bay laurel. Avocado or alligator pear also refers to the fruit, botanically a large berry that contains a single seed.