Angela CollierI am so sorry but I don’t understand why anyone wants a space elevator.
Coffee and the problem Episode 1: The science fiction writer R. A. Heinlen describes a skyhook satellite that consists of a long rope placed in orbit at the equators, aligned along a radius from the center of the earth, and moving so that the rope appears suspended in space above a fixed point on the equator. The bottom of the rope hangs free just above the surface of the earth (radius R). Assuming that the rope has uniform mass per unit length (and that the rope is strong enough to resist breaking!), find the length of the rope.
can we space elevator? should we space elevator?Angela Collier2023-09-24 | I am so sorry but I don’t understand why anyone wants a space elevator.
Coffee and the problem Episode 1: The science fiction writer R. A. Heinlen describes a skyhook satellite that consists of a long rope placed in orbit at the equators, aligned along a radius from the center of the earth, and moving so that the rope appears suspended in space above a fixed point on the equator. The bottom of the rope hangs free just above the surface of the earth (radius R). Assuming that the rope has uniform mass per unit length (and that the rope is strong enough to resist breaking!), find the length of the rope.
00:00 Introduction 02:04 Rubidium 06:24 Quantum Quantum Quantum 11:22 Why is it always Rubidium? 14:19 Some uses of Rubidium 16:09 Credits 18:42 My Eric Cornell storywho gets the Nobel prize?Angela Collier2024-09-18 | Some misconceptions about the Nobel prize and a Nobel prize worthy science story. Except this is a horror story. The discovery of insulin is a horror story and you cannot change my mind.I am not a medical doctor.
Chapters: 00:00:00 Introduction 00:03:25 Who gets the Nobel Prize? 00:20:31 Diabetes Mellitus 00:36:20 A Scientific Horror Story 00:56:13 Who gets the Nobel Prize? 01:10:03 Credits 01:11:28 The real horror storyHow Star Trek: Picard Ruins Star TrekAngela Collier2024-08-23 | All these Star Trek clips belong to Paramount. This video belongs to @acollierastro.
I hope the chapters work: 00:00:00 Introduction 00:01:21 A Good Show 00:14:43 Nemesis 00:19:55 NuTrek 00:27:47 Logan 00:31:22 Season 1 01:19:46 A Colossally Stupid Decision 01:27:31 Forgot to Wrap It Up 01:42:04 Season 2 01:58:02 Patrick Stewart Makes It So 02:05:22 Season 2 Discussion 02:20:09 Paramount Plus Sucks 02:33:54 Season 3 02:51:25 The Cliffhanger Problem 03:10:50 Shaw vs Locutus 03:21:03 The End 03:45:14 Credits 03:47:37 My face when I watch Picard10 lame physics thingsAngela Collier2024-07-27 | Splitting a block with feather and wedges:Splitting a block with feather and wedges
Tidal force bar formation gif: https://pages.uoregon.edu/imamura/122/lecture-7/sites.html Solo bar instability gif: https://astro.pas.rochester.edu/~aquillen/galaxydyn.html
Credit for the powerpoint slides (thank you!): This presentation template was created by Slidesgo,and includes icons by Flatiron, and infographics &images by Freepik
0:00 The Article 4:17 Chapter One: It's down the stack. 8:32 Chapter Two: A list of second questions. 24:23 Chapter Three: Being a handsome billionaire does not make you smart. 29:28 Chapter Four: Zoom is not a video conferencing company. 35:30 Chapter Five: Quantum Quantum Quantum 44:07 Chapter Six: Never attribute malice that which is adequately explained by stupiditywhy you cant explain qcdAngela Collier2024-06-22 | Or maybe why I can't?
The Interaction of Boltzmann with Mach, Ostwald and Planck, and his influence on Nernst and Einstein osti.gov/etdeweb/biblio/22654646 Physics and Philosophy of Science at the Turn of the Twentieth Century https://www3.nd.edu/~dhoward1/Phil-Phys-1900.pdf
Ernst Mach https://plato.stanford.edu/archIves/spr2010/entries/ernst-mach/#AntAto
Support me on Patreon and suggest some video ideas and also get one exclusive video per month:patreon.com/acollierastrothe concept of temperatureAngela Collier2024-03-31 | Teaching thermal physics, is as easy as a song: You think you make it simpler, When you make it slightly wrong!
---Mark Zemansky
If you took a shot every time I say "it's interesting!" during this video you would literally die. So please don't.
Patreon link: patreon.com/acollierastrophysicists only have 5 jokesAngela Collier2024-03-16 | The most boring person you know explains the joke. That makes them more funny right?
I am the arbiter of fun on this channel and I will delete unfunny jokes from the comments.pulsar distance: one weird trickAngela Collier2024-03-03 | Support me on Patreon and suggest some video ideas and also get one exclusive video per month:patreon.com/acollierastro
4-22. A pulsar emits a broad spectrum of electromagnetic radiation, which is detected with a receiver tuned to the neighborhood of f=80 MHz. Because of the dispersion in group velocity caused by the interstellar plasma, the observed frequency during each pulse drifts at a rate given by df/dt = -5 MHz/sec.
(a) If the interstellar magnetic field is negligible and w^2 much bigger than wp^2, show that :
df/dt ~ -c/x (f^3/fp^2)
where fp is the plasma frequency and x is the distance of the pulsar.
(b) If the average electron density in space is 0.2 cm^-3, how far away is the pulsar? (1 parsec =3x10^18 cm.)
Link to another coffee and the problem: youtube.com/watch?v=Z5aHMB4Tje4magnetic forces do no workAngela Collier2024-02-19 | This video is an answer to a question that was lost in my brain for over ten years. Magnetic fields do work…unless you are working inside a classical electrodynamics theory that isn’t aware of the concept of intrinsic quantum mechanical spin. Which is a very odd choice! But that’s just my opinion, man.
Link to my Patreon— one new video each month: patreon.com/acollierastrotheoretical physicist reads: love, theoreticallyAngela Collier2024-02-09 | Please believe I have nothing against romance novels, just this particular romance novel.
I am going to hard pivot this channel into #booktube I just read The Chrysalids and it was so good.
Join me on Patreon --- patreon.com/acollierastrothe faraday effectAngela Collier2024-01-29 | So much failure in this video---but that's how we learn things.
Experiments to Measure The Force of Gravity on Positrons Fairbank and Whittburn (because the Nature paper is not online, boooooo): https://s3.cern.ch/inspire-prod-files-b/bbbee44751a98c26f6e03d494698b715
12th International Conference on Atomic Physics: https://apps.dtic.mil/sti/pdfs/ADA259250.pdf
PHet online physics simulations and labs: https://phet.colorado.edu/en/simulations/filter?subjects=physics&type=html,prototype
Link to my patreon: patreon.com/acollierastrothe physics of pokémon evolutionAngela Collier2023-12-09 | I am very excited for the cozy resort Pokémon show. I am going to watch that.
Thorium Radioactive Path Data: pubs.usgs.gov/of/2004/1050/thorium.htma tiny peek at Christmas economicsAngela Collier2023-12-03 | People who do not celebrate christmas but have other gift-intense holidays: is it bad for you too?
Link to The Deadweight Loss of Christmas: https://www.amherst.edu/media/view/104699/original/christmas.pdf
Finally, my patreon : patreon.com/acollierastro where you get a new video each month and maybe some Kohl's cash. (Kohl's cash is a joke right? It doesn't actually exist? It gives me company store vibes. Can't be real.)electricity and magnetism are the same thingAngela Collier2023-11-18 | electricity and magnetism are the same thing: in 20 minutes-ish!
Many thanks to my patrons! Join my patreon for an extra video per month: patreon.com/acollierastrothe antimatter videoAngela Collier2023-11-11 | Dear children, this is the last hour; and as you have heard that the antimatter is coming, even now many antimatter has come. This is how we know it is the last hour. They went out from us, but they did not really belong to us. For if they had belonged to us, they would have remained with us; but their going showed that none of them belonged to us.
Join my patreon for a new video each month: patreon.com/acollierastrohow antimatter spacecraft will workAngela Collier2023-11-03 | In this video I do not describe how antimatter spacecraft will work. (I am still not over the use of the word ‘will’ in that title. I know that it is intended to match the series of other titles on the website but the audacity!)What I will do is complain on the internet. For about 40 minutes. As God intended.
Science Knowledge Quiz: pewresearch.org/science/quiz/science-knowledge-quiz Not to brag but I got a perfect score so…(You answered 11 questions correctly You scored better than 83% of the public, below 0% of the public and the same as 16%.)
If you would like to see more videos from me consider joining my patreon:patreon.com/acollierastrowhat is the radius of the hydrogen atom?Angela Collier2023-10-25 | What is the radius of the hydrogen atom? How has this answer changed over time? Quantum mechanics is fun and cool. Tablet math is tedious.
If anyone is trying to solve a homework problem and just googled this, a_0= 0.53e-10 m
Does anybody actually read these things?
The textbook is Principles of Quantum Mechanics by Professor R. Shankar.
You can join my Patreon if you like. I post a new, patron-only video each month. patreon.com/acollierastroa physicist responds: physics has done very little for like 70 yearsAngela Collier2023-10-06 | What have you done for me lately physics???
Turns out a whole lot of stuff. Neat. Physics is cool.
Link to join the patreon if you are interest patreon.com/acollierastro An exclusive video posted each month around the 1st.violin plots should not existAngela Collier2023-09-15 | Violin plots are never the best version of a plot. They are hard to read and bad.
Violinplot: https://www.stat.cmu.edu/~rnugent/PCMI2016/papers/ViolinPlots.pdf Beanplot: https://www.stat.cmu.edu/~rnugent/PCMI2016/papers/Beanplot.pdf Most plots from Harvard Open Courseware stuff: labxchange.org/library/items/lb:LabXchange:46f64d7a:html:1
Patreon (join for exclusive video each month): patreon.com/acollierastrothe computers can play stratego nowAngela Collier2023-09-06 | I love stratego. Please recommend some awesome two player games below.
Go check out @fairwaystrategovideos to watch some real stratego games and get some insight into strategy if this video has convinced you how awesome stratego is: youtube.com/@fairwaystrategovideos
Patreon (join for exclusive video each month): patreon.com/acollierastroa nuclear physics primerAngela Collier2023-08-27 | You know nuclear becuase of the nucleus.
Join my patreon--- new video every month: patreon.com/acollierastroalkaline water ...with lemonAngela Collier2023-08-13 | Alkaline Water with Lemon and Internet People Lie About Water
My water brand Can’t Trust a HO is on sale now! It’s just pure, clean, molecular oxygen! One of the most reactive chemicals of the known world! It will react you right to better health! Link: patreon.com/acollierastroThe Scourge of the ShireAngela Collier2023-07-30 | I know, I know. I’m sorry.
Link to Patreon: patreon.com/acollierastroAI does not exist but it will ruin everything anywayAngela Collier2023-07-16 | AI tools are helpful and cool as long as you know their limitations. AI doesn’t exist.There is no fidelity in AI. AI is build on biased data sets and will give biased results. AI should not be used to make decisions.
Link to that Legal Eagle episode: youtube.com/watch?v=oqSYljRYDEMbest physics equation | virial theorem | gravothermal catastropheAngela Collier2023-07-03 | Three things from thermodynamics. Why PV=nRt? What is the temperature of a black hole? Why is the PBS NOVA show so bad? I really tried to pronounce Clausius correctly but I don't think I nailed it.
On the Masses of Nebulae and of Clusters of Nebular by F. Zwicky:https://articles.adsabs.harvard.edu/full/1937ApJ....86..217Z
The Gravo-Thermal Catastrophe by D. Lynden-Bell and R. Wood: https://articles.adsabs.harvard.edu/full/1968MNRAS.138..495L
Paul Ehrenfest article: https://thereader.mitpress.mit.edu/paul-ehrenfest-forgotten-physicist/
Join my patreon if you want: patreon.com/acollierastro Extra videos there once a month.Gell-Mann Amnesia and Michio KakuAngela Collier2023-06-18 | I won’t be mad if you can’t follow this at all. Also I spend ten or so minutes doing an Eigen Value problem.The Gell-Mann amnesia to Igon Value problem pipeline. And what is going on with Michio Kaku?
Link to blog post fact checking Michio Kaku’s book: https://scottaaronson.blog/?p=7321
Finally, a link to my new patreon: patreon.com/acollierastro Feel free to check it out or ignore. Thanks for watching!dark matter is not a theoryAngela Collier2023-06-07 | dark matter is not a theory.
I tried to increase the sound on this---let me know how it went? I keep getting comments that my sound is too low but it always sounds fine on my devices.
Professor David Weinberg dark matter rap: https://www.astronomy.ohio-state.edu/weinberg.21/Rap/index.html
On the Potential of Silicon as a Building Block for Life pubmed.ncbi.nlm.nih.gov/32532048 Life in the Universe https://press.princeton.edu/books/paperback/9780691241784/life-in-the-universe-5th-edition The Black Cloud goodreads.com/en/book/show/1246118how to hack a telescope | ransomware sucksAngela Collier2023-05-08 | It would be cool if people would stop scamming other people.
I don't think anyone actually saw the movie I'm referencing with 'GENIUS HACKER MIT' It's called blackhat with Chris Hemsworth and I have not seen it either. I just think it's funny that the public perception of hackers who scam is 'genius' rather than 'jerk'.
This is just my opinion man. String theory is not bad. String theory is fine and interesting. String theory was communicated.....you could say poorly or could say deceptively.
The game is Binding of Isaac Rebirth. I wish I had saved the seed so I could post it here.the concept of massAngela Collier2023-04-15 | So there's just one mass. Just one.
Link to Lev Okun's 1989 paper: http://www.itep.ru/science/doctors/okun/publishing_eng/em_3.pdfthe adjunct problemAngela Collier2023-04-01 | So the people who teach all the courses don't actually work there?
Teachers are important! They deserve a living wage and job stability and health insurance and retirement benefits and sick leave and....
Ronald Reagan On Education: Booooooooooo---files.eric.ed.gov/fulltext/EJ684842.pdfhumanoid robots belong in the trashAngela Collier2023-03-23 | Robots in media --- a real bad.the most important material in scienceAngela Collier2023-03-06 | Did you guess? Let me know in the comments below if you were correct!
Also apologies saying nitrogen instead of potassium a bunch of times. May the chemistry gods forgive me.
The most important material in science is glass. This is a video about the history of glass. Glass is important. Glass is complicated. Professional scientific glass blowers are the coolest people in the world. And a little discussion on art versus science.
Glassy physics seminar by Prof. Janssen youtube.com/watch?v=eZAeTAbRmMsyour personal statement sucksAngela Collier2023-02-18 | This video contains some brief advice on writing personal statements (but this is just like, my opinion man.) Why am I posting this in February? If you are applying to things in 8 months---NOW IS THE TIME TO WRITE THESE THINGS UP. That way you have time to bring all your documents to people and have them read and critique things. Good luck out there!
Before starting a career in academia you may want to watch my postdoc exodus video.internet people lie about fluorideAngela Collier2023-01-24 | Getting scoffed at in the grocery store introduced me to an anti-fluoride movement. I was shocked and confused and then sad.
I am going to incorrectly spell fluoride so the algorithm picks it up: flouride.
I am not a medical doctor (but I do think you should brush your teeth with a fluoride toothpaste.)
Are you cheating with a bot or just playing like a bot?
This is a really vulnerable moment for me as you will soon learn I am an embarrassingly bad chess player.that whole pluto thing was wildAngela Collier2022-11-20 | When Pluto was declared a dwarf planet instead of a planet people lost their minds. I think that's pretty interesting.
Btw --- Pluto is a planet. So is the Moon.
Article Discussed: Moons Are Planets: Scientific Usefulness Versus Cultural Teleology in the Taxonomy of Planetary Science Link: arxiv.org/abs/2110.15285
#PruittData #ScarySciencewomen in space (but with legos so its fun)Angela Collier2022-09-26 | A short history on women in space. The NASA Artemis mission will put women on the moon in 2024. But will they? Are women still allowed to have jobs in 2024?
LEGO kit: LEGO Creator 3in1 Space Shuttle Adventure 31117 Building Kit