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2. Median lethal dose - Wikipedia

   en.wikipedia.org/wiki/Median_lethal_dose

   Median lethal dose. In toxicology, the median lethal dose, LD50 (abbreviation for " lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a given substance. [1] The value of LD 50 for a substance is the dose required to kill half the members of a tested population after a specified test ...

3. List of Nikola Tesla patents - Wikipedia

   en.wikipedia.org/wiki/List_of_Nikola_Tesla_patents

   Patents #1–#50. U.S. patent 334,823 - Commutator for Dynamo Electric Machines - 1886 January 26 - Elements to prevent sparking on dynamo-electric machines; Drum-style with brushes. U.S. patent 335,786 - Electric Arc lamp - 1886 February 9 - Arc lamp with carbon electrodes controlled by electromagnets or solenoids and a clutch mechanism ...

4. Rayon - Wikipedia

   en.wikipedia.org/wiki/Rayon

   Rayon, also called viscose [1] and commercialised in some countries as sabra silk or cactus silk, [2] is a semi-synthetic fiber, [3] made from natural sources of regenerated cellulose, such as wood and related agricultural products. [4] It has the same molecular structure as cellulose.

5. PS5 and Xbox Series X consoles are $50 off right now - Engadget

   www.engadget.com/ps5-and-xbox-series-x-consoles...

   The Xbox Series X is also $50 off. The standalone disk version of the PS5 is getting its first discount in the US. Until now, only bundles that include games have gone on sale. The Xbox Series X ...

6. List of states and union territories of India by households ...

   en.wikipedia.org/wiki/List_of_states_and_union...

   Kerala in 2017 became the first state to fully electrify all its households. [8] By 2018, eight other states have achieved 100 per cent saturation in household electrification under Saubhagya namely Madhya Pradesh, Tripura, Bihar, Jammu and Kashmir, Mizoram, Sikkim, Telangana and West Bengal, and by 2019, 15 States in the country achieved ...

7. Radar beacon - Wikipedia

   en.wikipedia.org/wiki/Radar_beacon

   In the United States a longer duty cycle is used, 50% for battery-powered buoys (20 seconds on, 20 seconds off) and 75% for on-shore beacons. Ramarks are wide-band beacons which transmit continuously on the radar bands without having to be triggered by an incoming radar signal. The transmission forms a line of Morse characters on the display ...