April 1, 1960, went into orbit the world’s first weather satellite — TIROS-1. He became a part of NASA program to study the meteorological properties of the cosmos, and also the monitor clouds covering the Earth. To do this, the TYROS is equipped with two cameras.
Meteorological satellite TIROS-1
He was in orbit for 78 days, and all the while he worked steadily, therefore the program of meteorological observations was decided to expand, and in 1962 several TIROS satellites carried “alert” is sent to Earth information for weather forecasts and helped determine the development of natural disasters in their early stages.
The USSR sent its own satellites into orbit later in 1967 on the basis of the satellite “Cosmos-144” and “Cosmos-156” Soviet meteorologists have deployed the system “meteor”. It later formed the basis of systems of monitoring of nuclear explosions and natural resources research.
April 1, 2004, the company Google launched its email service Gmail. It was originally available to a limited number of participants, and registration is allowed only by invitation. At an early stage of development e-mail Google appeared under the code name Caribou, but then was “combed” under corporate standards.
Gmail in 2004
Gmail in 2016
Competitors were many Gmail: email services already offered by Microsoft, Yahoo, AOL and other companies. And even rumors about the possible launch of such a service no one believed — detailed search across email, you full control of your mail from the browser (rather than specialized programs) and 1 GB of storage for emails looked improbably bright conditions 12 years ago.
Gmail was different from all the analogs are also very advanced from the standpoint of the web interface to perform many actions in the mailbox was rebooting, which was achieved through heavy use of Javascript.
Even advertising, the main income of Google, Gmail in was very unobtrusive — a tiny text ads instead of flashy banners “YOU are the MILLIONTH VISITOR to the PAGE! CLICK to GET YOUR PRIZE!” and the like made mail Google is so popular that the company couldn’t keep up to set the servers to handle emails. So open registration in Gmail appeared only 3 years after creation service. By the way, ads in the mail were directly related to the content of the emails, which Google has been accused of espionage for users.
1 April 1893 at the world exhibition in Chicago was shown the world’s first dishwasher. It was invented by Josephine Cochrane — the former socialite, who had to retrain into a housewife after her husband’s death and amassed debts.
Josephine Cochrane
The machine worked for a couple at the expense of excessive pressure the rams drove hot water and soap suds at the basket with slits, in which was installed a ware. We cannot say that the mechanism was perfect, and to hire a dishwasher, then was a lot cheaper than to buy a huge (translation by the current rate — a few thousand dollars). But it was a start, an enterprise Mrs. Cochran became the basis of the current company Whirpool, and truly committed dishwashers appeared only in 1960-ies.
The world’s first dishwasher