Liste des hashtags les plus populaires par sujet #COLUMBIAUNIVERSITY

#OnThisDay 50 years ago, the #Apollo11 moon mission launched. Did you know that #ColumbiaUniversity played a major role in the 1969 #moonlanding? A team of @ColumbiaLamontEarth scientists set up the first seismic experiments on the lunar surface, thanks to help from astronauts Neil Armstrong and Buzz Aldrin. • @ColumbiaMagazine story link in bio (linktr.ee/columbiamagazine) & for more moon-related content, check out Columbia's @EarthInstitute. • The Apollo 11 Saturn V rocket launching from Cape Canaveral. (NASA)⁠ Buzz Aldrin carries the Passive Seismic Experiment Package (PSEP) to its deployment site. (Image Science and Analysis Laboratory, NASA’s Johnson Space Center)

RCA Mark II Sound Synthesizer [1955-57]⁣⁣ ⁣⁣ That wall is a synth! Designed by Herbert Belar and Harry Olson at RCA, this synthesizer, of which there is only one - nicknamed “Victor” - was developed with a grant from the Rockefeller Foundation. It was installed at Columbia University in 1957 where it still resides today.⁣⁣ ⁣⁣ The RCA Mark II was the first programmable synth. As you can imagine, there weren’t many electronic instruments in the 1950s, and the ones that existed were definitely not programmable. Back then, composers created electronic works by splicing together individual sounds recorded on sections of tape (there is an example of this on my BBC Radiophonic post with Delia Derbyshire). Having developed an instrument that was programmable was a big deal.⁣⁣ ⁣⁣ Curious to what it sounds like? A vinyl exists that has examples of the RCA Mark. Released in 1955, you can buy it on Discogs (or maybe even find it at your local thrift store). The serial number is RCA [LM-1922] and titled “The Sounds and Music of the RCA Electronic Synthesizer”. It features tracks like “The Physical Characteristics of Musical Sound”.⁣⁣ ⁣⁣ Made to United States Air Force construction specifications, it used an oscilloscope made by the Air Force. You might not know what an oscilloscope is, but you’ve probably seen one before. It’s an instrument that graphically displays varying signal voltages as a two-dimensional plot. Sound or vibration can be converted to voltages and displayed. Think of the machine that displays the waveform of your heartbeat at the hospital.⁣⁣ ⁣⁣ The synthesizer had four-note variable polyphony. It used vacuum tubes for amplification and featured a fully automated binary (1’s and 0’s) sequencer using a paper tape reader. The reader would send instructions to the synthesizer and automate the playback of the machine. ⁣⁣ ⁣⁣ RCA - or the Radio Corporation of America - purchased the Victor Talking Machine Company In 1929 and became RCA Victor up until 1968, when they eliminated Victor in their name. Perhaps this is why this synth is nicknamed Victor!⁣ ⁣⁣ ⁣ References: Wiki, ETHW.org, Encyclotronic.

Survived #humpday 2 more days until the weekenddd

Missing my girl... A brief sketch of Low Memorial Library at Columbia University.

In 1915, the Columbia College Class of 1890 presented a gift to the University to mark the occasion of its 25th reunion: the pylon named Letters that now graces the right side of the 116th Street Gates at Broadway. #columbiauniversity #throwback #TBT • @alumniofcolumbiacollege story link in bio (college.columbia.edu/cct/issue/summer18/article/pylons-flanking-116th-street-gates-were-going-be-set-four) @columbiacollege1754 @columbiaalumni

Jump into this #humpday treat! Our #falafel dish is #amazinglydelicious #Served with #hummus and #gardenfresh #roasted #vegetables it’s a great choice to stay...or to go! #yumyum #nomnom #nomnomnom #sogood #yummy #eatup #foodporn #forkyeah #eeeeeats #morningsideheights #columbia #columbiauniversity

Congratulations to @USWNT @fifawomensworldcup Champions! ⚽️ Throwback to a great #USWNT champion @AbbyWambach and her 2018 @BarnardCollege commencement speech, in which she tells us what's at stake when we consider the pay gap between women and men. • #BarnardCollege link in bio (youtube.com/watch?v=wJe40l2waxs) • #columbiauniversity #wolfpack

I know I graduated but just 1 more @marciandchristy picture seems appropriate #columbiauniversity #nyc #midwestinthebigcity #marciandchristy #seniorpictures #seniorphotos #seniorphotographers

Every one of us has a story, here’s a little piece of mine. A little over a year ago I was accepted into the house that Pulitzer built. That overwhelming happiness quickly turned into fear and anxiety as I began to doubt if I was capable; if I was worthy. A year later I’m graduating from the best journalism school on the planet with a Masters degree in the field that I love most... alongside a class of journalist who are all ready to leave a lasting impact on the world. I was pushed to my limits and forced to raise my own standards time and time again, and I’m a better journalist, a better colleague, a better friend, a better brother, a better son, and a better person, because of it. Thank you to everyone who has been a part of my story over the course of the last year and for allowing me to be a part of yours; family, friends, mentors, and colleagues. I couldn’t have done it without each and every one of you. And thank you @columbia @columbiajournalism for showing me that dreams come true. The story doesn’t end here. #ColumbiaUniversity #IvyLeague #BroadcastJournalism