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Carver Mead is an emeritus professor of engineering and applied science at Caltech, where he has taught for more than thirty years. We talk to him about his work on simplifying the foundations of mathematical physics, his days as a pioneer in integrated circuit technology, incorrect interpretations of Gravity Probe B, and some proposed experiments for testing the coupling between gravitation, momentum, and the speed of light. (00:00:00) Go!(00:00:50) Very Large Scale Integration(00:06:54) The persistence of bad ideas(00:12:38) Variable Speed of Light(00:17:17) Shapiro Delay(00:21:58) Patreon ask(00:21:59) The Experiment(00:24:49) Link to handout(00:30:03) Testing the Gravitationally Coupled Speed of Light(00:39:53) Gravity Probe B(00:45:44) Misleading Mathematics(00:53:43) Electromagnetism is rotten at it's core(01:00:36) Systematic Changes for the Future(01:07:43) Michaelson Morley or Something Else?(01:15:50) An explanation for gravity Support the scientific revolution by joining our Patreon: https://bit.ly/3lcAasB Tell us what you think in the comments or on our Discord: https://discord.gg/MJzKT8CQub ### Check our short-films channel, @DemystifySci: https://www.youtube.com/c/DemystifyingScience AND our material science investigations of atomics, @MaterialAtomics https://www.youtube.com/@MaterialAtomics Join our mailing list https://bit.ly/3v3kz2S PODCAST INFO: Anastasia completed her PhD studying bioelectricity at Columbia University. When not talking to brilliant people or making movies, she spends her time painting, reading, and guiding backcountry excursions. Shilo also did his PhD at Columbia studying the elastic properties of molecular water. When he's not in the film studio, he's exploring sound in music. They are both freelance professors at various universities. - Blog: http://DemystifySci.com/blog - RSS: https://anchor.fm/s/2be66934/podcast/rss- Donate: https://bit.ly/3wkPqaD- Swag: https://bit.ly/2PXdC2y SOCIAL: - Discord: https://discord.gg/MJzKT8CQub- Facebook: https://www.facebook.com/groups/DemystifySci- Instagram: https://www.instagram.com/DemystifySci/- Twitter: https://twitter.com/DemystifySci MUSIC: -Shilo Delay: https://g.co/kgs/oty671
Spaceflight News— SpaceX cuts costs (spacenews.com)— Starship launch license (spacenews.com)— Relativity pivots away from Terran-1 (spacenews.com) (techcrunch.com) (relativityspace.com)Questions, Comments, Corrections— From the intro: JUICE launch successful (nasaspaceflight.com)This Week in Spaceflight History— 20 Apr, 2004: The launch of Gravity Probe-B (en.wikipedia.org) (web.archive.org) (einstein.stanford.edu) (dontpanicgeocast.com)— Next week (4/25 - 5/1) in 1985. Shuttle spelunkin'.
Weer eens een vrolijk fenomeen uit de hoge hoed van Albert Einstein: frame dragging. Het is bijna te vreemd voor woorden, maar het effect is meetbaar en inmiddels door diverse instrumenten aangetoond. Hoe dit nou weer zit hoort u in deze aflevering van "Zimmerman in Space". Het LIGO observatorium: https://www.ligo.caltech.edu/ (https://www.ligo.caltech.edu/) Gravity Probe B: https://www.nasa.gov/pdf/162789main_gpb_fs.pdf Sally Ride: https://nl.wikipedia.org/wiki/Sally_Ride A new laser-ranged satellite for General Relativity and Space Geodesy: https://arxiv.org/pdf/1910.13818.pdf
**NEW SERIES** - Historical launches!! First episode will be of the Gravity Probe-B. This episode turned into an interesting conversation about a world of different things. Gravity Probe-B https://www.nasa.gov/mission_pages/gpb/ IM Pegasi: https://www.google.com/search?q=IM+Pegasi&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiPiPeatqP3AhWkJzQIHQPZDKEQ_AUoAXoECAIQAw&biw=1272&bih=611&dpr=2 General Relativity simulation: https://youtu.be/wrwgIjBUYVc https://www.youtube.com/watch?v=F5PfjsPdBzg World Science Fest: https://www.worldsciencefestival.com/festival/world-science-festival-2021/ No Boundary Proposal: https://www.google.com/search?q=no+boudary+propsal&oq=no+boudary+propsal+&aqs=chrome..69i57j0i13l3j0i13i30l3j0i5i13i30l2j0i390.2705j0j7&sourceid=chrome&ie=UTF-8 Quantum Physics doc: https://youtu.be/CBrsWPCp_rs Michio Kaku & Brian Greene on String Theory: https://www.openculture.com/2015/11/michio-kaku-brian-green-explain-string-theory-in-nutshell.html Stephen Wolfram's paradigms: https://writings.stephenwolfram.com/2021/09/multicomputation-a-fourth-paradigm-for-theoretical-science/ Download the Callin app for iOS and Android to listen to this podcast live, call in, and more! Also available at callin.com
Gravity Probe B : cette mission en orbite terrestre exploite l'effet gyroscopique pour mesurer la déformation de l'espace autour de la Terre. La théorie de la relativité générale est confirmée, des effets étonnants sont validés...
A quick tour of our solar system Limits of Humanity: The observable universe goes on for light years & we'll only ever see 0.00000000001% of it (Kurzgesagt, Devour) Powers of Ten: The classic video from 1977 that explains the scale of space (YouTube) Riding Light: Travel with a beam of light in real time through our solar system (Vimeo, Alphonse Swinehart) A beautiful planet (IMAX) The Total Perspective Vortex: The machine from the Hitchhiker's Guide to the Galaxy that makes you feel so insignificant it will crush your soul (Hitchhiker Wiki) We need different types of telescopes to 'see' the different types of waves in the universe: radio, infrared, visible, X-ray, gamma (NASA) Telescope to seek Earthlike planet in Alpha Centauri system (The New York Times) The BoldlyGo Institute: Private space exploration (Boldy Go) Pluto is 7.5 billion km from Earth (Space.com) Live tracking: Where is Halley's comet now? (The Sky Live) Live tracking: Where are the Voyager probes now? (NASA) Voyager 1 is travelling at about 17 km per second (Wikipedia) It's believed that Voyager 1 is either in interstellar space or pretty close to it - that's the furthest we've sent anything (Wikipedia) NASA's 'eyes': Cool website where you can track all sorts of space things (NASA) The Deep Space Network: Live tracking of probes & stuff by telescopes on Earth (NASA) In about 30,000 years, Voyager 1 will have passed through the Oort Cloud & in 40,000 years it will pass within 1.6 light-years of the star Gliese 445 (Wikipedia) What is the Kuiper Belt? A belt of icy bodies beyond Neptune (Cosmos, Swinburne University) What is the Oort Cloud? A hypothesised belt of icy bodies in the far reaches of the solar system (Cosmos, Swinburne University) It would take about 6 months to drive to the Moon at 95 km/hour (Science Focus) Apollo 11 took 3 days, 3 hours & 49 minutes to reach the Moon (Reference.com) What if Apollo 11 failed? President Nixon had a speech ready (Space.com) A moon is any natural satellite orbiting another body - planets, dwarf planets, asteroids & Kuiper Belt objects can all have moons (Encyclopaedia Britannica) Earth's moon's name is the Moon (caps M), it's also sometimes called 'Luna' (Wikipedia) Earth potentially has 18,000 moons, depending on your definition (Space.com) A star is a big exploding ball of gas - the Sun (caps S) is the name of Earth's star (Qualitative Reasoning Group, Northwestern University) When to capitalise the 'E' on Earth (Grammarist) The 'controversial' 2006 definition of a planet states: "a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round & has 'cleared its neighbourhood' of smaller objects around its orbit" (Wikipedia) Pluto was stripped of its planet status in 2006 (New Scientist) Formation & evolution of the solar system (Wikipedia) How are planets formed? (Phys.org) Planets form in zones: The terrestrial (rocky) planets closer to the sun & the jovian (gassy) planets further out (LASP, University of Colorado) Order of the 8 planets in our solar system (Space.com) How was the Earth formed? (Space.com) What is a gravity well? (Qualitative Reasoning Group, Northwestern University) Where did Earth get its water? (Cosmos) Where did Earth's water come from? (livescience) What is the Goldilocks Zone & why does it matter in the search for ET? (ABC, Australia) What is Neptune made of? It's an icy, slushy, gassy planet with a rocky core (Space.com) Basics of orbital mechanics (NASA) What are Kepler's Laws? They describe the motion of planets across the sky (HyperPhysics, Georgia State University) An exoplanet is a planet that orbits a star other than our Sun (Wikipedia) 5 ways to find an exoplanet (NASA) If Planet 9 is out there, it tilts our solar system (The New York Times) What is Jupiter made of? It's very gassy, mostly hydrogen & helium, & we don't know if it has a solid core (Space.com) The Juno probe aims to unlock the secrets of Jupiter - it's currently orbiting & will crash into it in February 2018 (NASA) Juno has had a glitch, but is mostly ok (The New York Times) What is Mercury made of? It's a dense little nugget with a neglible atmosphere (Space.com) What is Venus made of? It's a hot, rocky planet (Space.com) Was Venus the first habitable planet in our solar system? (The Guardian) Venus spins very slowly, in the wrong direction (The New York Times) "Venus's climate is strongly driven by the most powerful greenhouse effect found in the solar system" (European Space Agency) Carbon dioxide absorbs & re-emits infrared radiation (Center for Science Education) Predator's infrared vision (YouTube) What is Mars made of? It's very dusty & rocky, with a thin atmosphere (Space.com) NASA confirms evidence that liquid water flows on today's Mars (NASA) They reckon Mars was warm & wet about 4 billion years ago (NASA) Exploration of Mercury: We've only sent 2 probes, 1 in 1973 & 2004, but there's another set to launch in 2017 called 'BepiColombo' (Wikipedia) List of solar system probes: We've been busy (Wikipedia) How the atmosphere affects our planet (Softpedia) The gas giants (Wikipedia) What is Saturn made of? It's pretty gassy, mostly hydrogen & helium (Space.com) How long do footprints last on the Moon? Potentially as long as the Moon (Space.com) Origin of Jupiter & Saturn: New theories on formation of gas giants (The Daily Galaxy) The case for Saturn being able to float on water (Universe Today) The case against Saturn being able to float on water (Wired) Planets & dwarf planets can have moons, & there are currently 182 identified in our solar system (Wikipedia) Mecury & Venus don't have moons (Windows 2 The Universe) Mars' moons are Phobos & Deimos; Jupiter has 67 moons, including the 4 that Galileo discovered; Saturn has 62; Uranus has 27; Neptune has 14, NB: Some moons are still awaiting official 'moon status' confirmation (NASA) Galileo made his own telescope & discovered 4 of Jupiter's moons in 1610, which got him into trouble with the Catholic Church (BBC) Saturn has some very cool moons, including the beautiful Enceladus with its icy gesyers (Space.com) Our moon is pretty big by moon standards (Windows 2 The Universe) How the Moon formed: Violent cosmic crash theory gets double boost (Space.com) Our solar system gets pretty chilly out past Mars (NASA) What might the sun look like from other planets? (Futurism) NASA's 'Pluto Time' shows how bright it is on dwarf planet (Space.com) Pluto may have clouds (The New York Times) Chemical properties of methane (Wikipedia) Methane is quite common in the outer solar system (University of Oregon) Ceres is a dwarf planet (Wikipedia) Charon is the largest of the 5 known moons of the dwarf planet, Pluto (Wikipedia) Pluto's unusual orbit (Smithsonian) You need a telescope to see Pluto (EarthSky) The hypothetical planet, Vulcan (Wikipedia) Gravity Probe A helped figure out relativity (Wikipedia) Gravity Probe B helped figure out the curvature of space-time near Earth (Wikipedia) Why did we land on a comet? (Mental Floss) Røde microphones Corrections Woops! Lucy did bad maths: Light would travel a little over 1 billion km in 1 hour, not 65 billion km...so not as far as Pluto (Wolfram Alpha) Apparently we may have photographed an exoplanet: This is the first photo of a candidate 1,200 light-years away (Science Alert) More than 1,300 Earth's would fit inside Jupiter (NASA) Cheeky review? (If we may be so bold) It'd be amazing if you gave us a short review...it'll make us easier to find in iTunes: Click here for instructions. You're the best! We owe you a free hug and/or a glass of wine from our cellar Where are you from? Send us a postcard! Strange Attractor, c/ PO Box 9, Fitzroy, VIC 3065, Australia Click to subscribe in iTunes
The Gravity Probe B mission took on one of science's most intriguing challenges- to confirm a space-time vortex around our planet.
We look at the results from Gravity Probe B and how they relate to Einstein’s predictions on mass, space, time and how they all interact with one another.
We look at the results from Gravity Probe B and how they relate to Einstein’s predictions on mass, space, time and how they all interact with one another.
How are sunspots born? What does a black hole collision look like? How long does it take to make a full-size galaxy? This month on Naked Astronomy, we find out why people searching for pulsars might spot colliding black holes in their data, how galaxies may form quicker than predicted, and where in the sun sunspots first arise. Plus, news from gravity probe B, why there's no more space on the moon for craters, and how as many as half of all hot Jupiters may be spinning the wrong way. Like this podcast? Please help us by supporting the Naked Scientists
How are sunspots born? What does a black hole collision look like? How long does it take to make a full-size galaxy? This month on Naked Astronomy, we find out why people searching for pulsars might spot colliding black holes in their data, how galaxies may form quicker than predicted, and where in the sun sunspots first arise. Plus, news from gravity probe B, why there's no more space on the moon for craters, and how as many as half of all hot Jupiters may be spinning the wrong way. Like this podcast? Please help us by supporting the Naked Scientists
Einstein and Gravity Probe BLearn more about your ad choices. Visit megaphone.fm/adchoices
More than 100 researchers and support staff who worked on the Gravity Probe B mission gathered on the patio of the Ginzton Laboratory to receive a group achievement award from NASA on Nov. 30.
[audio https://garethstack.files.wordpress.com/2013/08/17_technolotics.mp3] Listen: Episode 17 Watch: Youtube Feed: RSS Perfect spheres into space to check Einstein’s theory The Gravity Probe B satellite [1] was launched by NASA to measure the curvature and rotation of space time around earth [2] Testing two unverified predictions of general relativity – frame dragging and the The Geodetic Effect – which have implications for … Continue reading Technolotics #17 – Perfectly Spherical Balls →