#TIL SQL Server and MySQL PRIMARY KEY is, by default, clustered (and SQL Server can change a primary key to non-clustered if specified). Whereas in PostgreSQL, PRIMARY KEY is essentially a non-nullable unique index and clustering is specified separately. #DirtyDetails
til
Today I learned about the Overthrow of the Hawaiian Kingdom in 1893 when a group of European and American businessmen overthrew the monarchy. In 1993 the US government apologized for it.
https://en.wikipedia.org/wiki/Overthrow_of_the_Hawaiian_Kingdom
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1c5vvi3/today_i_learned_about_the_overthrow_of_the/
#TIL #Microsoft is actually going to put their .microsoft #nTLD into use, now with https://teams.cloud.microsoft/
https://devblogs.microsoft.com/microsoft365dev/action-required-ensure-your-microsoft-teams-apps-are-ready-for-upcoming-domain-changes/
#domain
TIL a bear, tiger, and lion were found together in a drug dealers house, all cubs. They became best friends for life
https://www.intelligentliving.co/bear-tiger-lion-friends-for-life/
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1c6ttb5/til_a_bear_tiger_and_lion_were_found_together_in/
TIL after losing her position in her university's anatomy department in 1938, Rita Levi-Montalcini set up a laboratory in her bedroom and studied the growth of nerve fibers in chicken embryos. This work led to her discovery of nerve growth factor, for which she was awarded a Nobel Prize in 1986.
https://en.wikipedia.org/wiki/Rita_Levi-Montalcini
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1c85jvt/til_after_losing_her_position_in_her_universitys/
TIL Tina Bell an African American woman is considered an early grunge pioneer and is dubbed "the Godmother of Grunge" and "queen of Grunge" , her Seattle-based band Bam Bam was considered one of the founders of the grunge music scene. Future Nirvana Kurt Cobain once served as a roadie for the band.
https://en.wikipedia.org/wiki/Tina_Bell
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1c93l3d/til_tina_bell_an_african_american_woman_is/
TIL Elton John's farewell tour is the second highest grossing tour in history, making $939M across 330 shows. Taylor Swift is number 1, with just over a billion dollars across 60 shows
https://en.wikipedia.org/wiki/List_of_highest-grossing_concert_tours
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1co2rtz/til_elton_johns_farewell_tour_is_the_second/
TIL Coca-Cola was accused of hiring hitmen between 1990 and 2002 to kill at least 10 trade union leaders.
https://www.theguardian.com/media/2003/jul/24/marketingandpr.colombia
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1ckpxsk/til_cocacola_was_accused_of_hiring_hitmen_between/
#TIL Stanley 刨子很长一段时间用的是夹钢(两种钢粘在一起,高碳的硬的钢用在锋面,但难磨,低碳的软的用在背面,因为好磨),我犹记得当初搞爆的一枚刨刃,就是沿着两种钢粘合的地方裂开了。其他的关键词还有 Sheffield,England 出产的钢和瑞典出的生铁(“Swedish iron ore deposits contain small percentages of the element vanadium, which makes steel produced from it a natural alloy. The presence of vanadium allows production of a tough, fine-grained steel whose high tensile strength is not crippled by brittleness.”),都是耳熟能详的地方了。
https://workingbyhand.wordpress.com/2024/04/10/what-steel-was-used-in-vintage-plane-blades/
#TIL If you use vim and you want to paste multiline configurations without messing up the indentation:
:set paste
Use :set nopaste to turn paste mode off and resume normal indent handling.Today I learned that my MacBook was loud and burning hot not because it's old and I keep dropping it off the sofa, but because of the felt my cats installed on the fan!
#TIL that elephants purr!
"Stand near an elephant herd, and you may feel a strange vibration in your chest. That’s not your heart beating in terror because you’re, well, standing next to an elephant herd. Or at least that’s not all it is. It’s also a sign that the elephants are talking to one another. Elephants are famous for their trumpeting, of course, but they also produce rumbles pitched so low that humans can’t hear them, only feel them as a sort of physical buzzing. Exactly how elephants do this has been a mystery — and while solving that mystery is not of first-order importance in understanding and preserving this largest of land animals, it would add new insight into how a whole range of species vocalize."
#TIL: Hungary maintains a closed system to track everyone who wants to stay in a hotel, airbnb, etc. 🤯
4🦊🍶
#TIL You can actually poll on a Promise and watch the status with the help of the "util.inspect" function.
For unwrapping the result one still needs to use await or .then or Promise.resolve() or some other Promise based key words.
Please let me know if you happen to know how to unwrap the result without even touching any Promise syntax.
TIL Judith Love Cohen was American aerospace engineer who helped create the Abort-Guidance System that rescued the Apollo 13 astronauts. When she went into labor, she took a printout of her problem to the hospital. She called her boss and said she finished it before giving birth to actor Jack Black.
https://kottke.org/19/05/meet-aerospace-engineer-judith-love-cohen
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1dgtbeh/til_judith_love_cohen_was_american_aerospace/
TIL that after getting divorced, Giancarlo Esposito had to declare bankruptcy, and he considered suicide by arranging his own murder to provide insurance money for his children. He was then cast as Gus Fring on Breaking Bad.
https://variety.com/2024/tv/news/breaking-bad-giancarlo-esposito-broke-murder-insurance-money-1235975553/
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1dhkk92/til_that_after_getting_divorced_giancarlo/
哦对了。前几天跟着《Game Design and Development with Unity 2020 Specialization》做的太阳系模拟器作业忘在这记录了。
很粗糙但是毕竟学了!
#TIL
TIL Popcorn icon Orville Redenbacher Died By Drowning in A Hot Tub
https://en.wikipedia.org/wiki/Orville_Redenbacher#Death_and_legacy
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1dl659z/til_popcorn_icon_orville_redenbacher_died_by/
TIL about a quarter of the registered hosts on Airbnb own nearly two thirds of the listings. Wealthy users buying multiple houses to rent out is a significant contributor to the current housing crisis.
https://lmulawreview.scholasticahq.com/post/2332-the-role-of-airbnbs-in-america-s-housing-crisis
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1dm052h/til_about_a_quarter_of_the_registered_hosts_on/