Search results
13 hours ago · The name "coronavirus" is derived from Latin corona, meaning "crown" or "wreath", itself a borrowing from Greek κορώνη korṓnē, "garland, wreath". The name was coined by June Almeida and David Tyrrell who first observed and studied human coronaviruses.
13 hours ago · The global average sea level has risen about 250 millimetres (9.8 in) since 1880. [1] Sea surface height change from 1992 to 2019 – NASA. The visualization is based on data collected from the TOPEX/Poseidon, Jason-1, Jason-2, and Jason-3 satellites. Blue regions are where sea level has gone down, and orange/red regions are where sea level has ...
13 hours ago · Hydroelectricity. The Three Gorges Dam in Central China is the world's largest power-producing facility of any kind. Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4,500 TWh in 2020, which is more than all other renewable sources ...
13 hours ago · As a result of these incidents, the United States Department of Transportation's National Highway Traffic Safety Administration (NHTSA) conducted a study in 2017 to establish whether lithium-ion batteries in plug-electric vehicles pose an exceptional fire hazard. The research looked at whether the high-voltage batteries can cause fires when ...
13 hours ago · Saturation diver conducts deep sea salvage operations. Saturation diving is diving for periods long enough to bring all tissues into equilibrium with the partial pressures of the inert components of the breathing gas used. It is a diving mode that reduces the number of decompressions divers working at great depths must undergo by only ...
13 hours ago · Gut microbiota, gut microbiome, or gut flora are the microorganisms, including bacteria, archaea, fungi, and viruses, that live in the digestive tracts of animals. [1] [2] The gastrointestinal metagenome is the aggregate of all the genomes of the gut microbiota. [3] [4] The gut is the main location of the human microbiome. [5]
13 hours ago · According to the OECD Global Plastic Outlook, global production of plastic waste reached 353 million tonnes in 2019, more than doubling since 2000, with projections indicating a tripling by 2060. Of this vast amount, only 9% was recycled, 50% was sent to landfills, 19% was incinerated, and 22% was disposed of in uncontrolled sites or dumps.
