August 18, 1868 French astronomer discovered helium. Pierre Janssen used a spectroscope for the observation of plasma formations on the edge of the solar disk during an Eclipse. He also invented a method of daily exploration of the solar edges on ordinary days. In the spectrum of solar radiation that day, in addition to the known spectral lines of hydrogen were visible a new bright yellow line. Originally a scientist took her over the line D of sodium. He immediately wrote about this to the French Academy of Sciences but later it was found that this line does not match the settings with sodium and does not belong to any known at that time elements. The name of the new element gave another astronomer, Briton Norman Lockyer, who also discovered a yellow line in the spectrum, but two months later. Helium in old Greek means the Sun. Helium is one of the most rasprostranennyh elements in the Universe after hydrogen, and the boiling point of the lowest among all known substances, -268,94 °C. This element is widely used in metalurgie, as a refrigerant, in gas-discharge tubes and even as a coolant in some nuclear reactors.
The yellow line in the helium spectrum
18 August 1976 interplanetary station Luna-24 landed on the moon. The device launched on 9 August from the cosmodrome “Baikonur”. Immediately after planting, on command from Earth to the station was included protozanova installation. As a result of the analyses of the samples collected by the apparatus of the Luna-24 scientists have received convincing proof of the presence of water on the moon. The Americans were able to obtain similar results only in 90-ies in the draft Clementine and Lunar Prospector. Luna-24 was the last spacecraft which the Soviet Union launched to the moon. Following soft landing on Earth’s natural satellite was only 37 years old, December 14, 2013, the Chinese Chang’e-3 was taken on the moon Lunokhod UTU.
Luna-24 in the pavilion at ENEA
August 18, 2003 Adobe released Adobe autdition. A new program for sound editing was based on Cool Edit Pro 2.0, which Adobe bought the company Syntrillium Software in may of the same year for $ 16.5 million. The app developed by former Microsoft employees, and Cool Edit was originally distributed for free, but was available only two effects that were selected when you started. Later, Cool Edit Pro, which became one of the best audio editors for their time. However, due to the small capacity of the computers, processing was carried out destructive manner (the original file has not been saved). But in the version of Cool Edit Pro v2 appeared non-destructive processing of tracks in real time, and in the version 2.1 multitrack mixing a large number of tracks.
Cool Edit Pro 2.1