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2 天前 · Veganism is the practice of abstaining from the use of animal products—particularly in diet—and an associated philosophy that rejects the commodity status of animals.[c] A person who follows the diet or philosophy is known as a vegan. Distinctions may be made between several categories of veganism. Dietary vegans, also known as "strict ...
- Avoiding the use of animal products, particularly in diet
- Dorothy Morgan and Donald Watson (November 1944)
1 天前 · The narwhal (Monodon monoceros), is a species of toothed whale, and the only member of the genus Monodon.Its closest living relative is the beluga whale, and cases of interbreeding between the two species has been recorded. It is sexually dimorphic, as adult males are larger than females and have a long single tusk that can be up to 3 m (9.8 ft).
1 天前 · Eugenics (/juːˈdʒɛnɪks/ yoo-JEN-iks; from Ancient Greek εύ̃ (eû) 'good, well', and -γενής (genḗs) 'come into being, growing')[1] is a set of beliefs and practices that aim to improve the genetic quality of a human population.[2][3][4] Historically, eugenicists have attempted to alter human gene pools by excluding people and ...
4 天前 · Mark Elliot Zuckerberg (/ˈzʌkərbɜːrɡ/; born May 14, 1984) is an American businessman. He co-founded the social media service Facebook, along with his Harvard roommates in 2004, and its parent company Meta Platforms (formerly Facebook, Inc.), of which he is chairman, chief executive officer and controlling shareholder. Zuckerberg briefly ...
2 天前 · Black holes are commonly classified according to their mass, independent of angular momentum, J.The size of a black hole, as determined by the radius of the event horizon, or Schwarzschild radius, is proportional to the mass, M, through = , where r s is the Schwarzschild radius and M is the mass of the Sun. ...
2 天前 · Muammar Muhammad Abu Minyar al-Gaddafi (c. 1942 – 20 October 2011) was a Libyan revolutionary, politician and political theorist who ruled Libya from 1969 until his assassination by rebel forces in 2011. He first served as Revolutionary Chairman of the Libyan Arab Republic from 1969 to 1977 and then as the Brotherly Leader of the Great Socialist People's Libyan Arab Jamahiriya from 1977 to 2011.
17 小時前 · Belgium,[A] officially the Kingdom of Belgium,[B] is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the south, and the North Sea to the west. It covers an area of 30,689 km2 (11,849 sq mi)[4][12] and has a population of more than 11.5 ...
