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The Lightning project was announced on December 22, 2004, in an effort to integrate Mozilla Sunbird into Mozilla Thunderbird. [6] Sun Microsystems contributed significantly to the Lightning Project to provide users with an alternative free and open-source choice to Microsoft Office by combining OpenOffice.org and Thunderbird with the Lightning Extension. [7]
PyTorch Lightning is an open-source Python library that provides a high-level interface for PyTorch, a popular deep learning framework. [1] It is a lightweight and high-performance framework that organizes PyTorch code to decouple research from engineering, thus making deep learning experiments easier to read and reproduce.
There are about 40,000 thunderstorms per day across the globe, generating roughly 100 lightning strikes per second, [1] which can be thought to charge the Earth like a battery. Thunderstorms generate an electrical potential difference between the Earth's surface and the ionosphere, mainly by means of lightning returning current to ground ...
EB Garamond is a free and open source implementation of Claude Garamond’s typeface, Garamond, and the matching Italic, Greek and Cyrillic characters designed by Robert Granjon. Its name is a shortening of E genolff– B erner Garamond which refers to the fact that the letter forms are taken from the Egenolff–Berner specimen printed in 1592.
Combined these create what the Soviets nicknamed a "lightning machine." [1] In all the facility contains a 3 megawatt capacity transformer cascade, a 9 megawatt Pulsed Voltage Generator (PVG), measuring 39.3 meters high and capable of creating 150-meter artificial lightning, and a 2.25 megawatt constant voltage unit. [1]
Positive lightning is less common than negative lightning and on average makes up less than 5% of all lightning strikes. [ 10 ] A bolt from the blue lightning strike which appears to initiate from the clear, but [ clarification needed ] the turbulent sky above the anvil cloud and drive a bolt of plasma through the cloud directly to the ground.
The "1.2/50 μs" generator is designed for insulation testing, and produces a high-voltage, low-current impulse into a high-impedance load. The output current of this generator is on the milliampere scale. [2] [5] The "8/20 μs" generator is designed for surge arrester testing, and produces a high-current surge into a low-impedance load. [2]
Franklin's friend Kinnersley traveled throughout the eastern United States in the 1750s demonstrating man-made "lightning" on model thunder houses to show a how an iron rod placed into the ground would protect a wooden structure. He explained that lightning followed the same principles as the sparks from Franklin's electrostatic machine.