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Forum time: July 16, 2025, 7:05 am

Sabine Hossenfelder: I Think Faster Than Light Travel is Possible. Here's Why. - DFM April 30, 2023, 8:06 pm You bring to my mind hyper loop. - GOG May 1, 2023, 10:40 pm MRI can now image individual cells - urnlfn April 18, 2023, 7:43 pm It’s a stretch to believe we are 90% bacteria. - GOG April 20, 2023, 7:12 am They are not evenly distributed throughout the body - urnlfn April 28, 2023, 11:54 pm Still, that leaves precious little room for me. - GOG May 1, 2023, 10:34 pm I never heard of this. Thanks for posting it. - DFM April 19, 2023, 4:37 pm I rather enjoyed the give and take debate regarding GR and - GOG April 27, 2023, 7:13 am SpaceX Starship fails to reach space - urnlfn April 22, 2023, 12:36 pm Space travel is VERY DIFFICULT and things may always go wrong. - DFM April 24, 2023, 7:49 am Up in smoke (4/20) - urnlfn April 22, 2023, 12:41 pm I wonder what Blue Origin is doing? - urnlfn April 22, 2023, 12:57 pm Starship nearly dug a hole to China - urnlfn April 22, 2023, 2:09 pm A huge waste of monies. A huge waste of ozone. - GOG April 23, 2023, 7:31 am The flame diverter issue was easily anticipated - urnlfn April 24, 2023, 8:18 pm Thank you for that information. - GOG April 26, 2023, 7:03 pm Three posters on this board? Boring. - GOG April 22, 2023, 7:07 am We keep reading about "Earth-Like Planets" which are nothing like Earth. - DFM January 28, 2023, 9:28 pm Surprise surprise. The Moon are a infested with life. Just not your type. - GOG February 4, 2023, 11:28 am Probably NOT because not enough water on Moon. Mars is very likely to harbor life, IMHO. - DFM February 8, 2023, 8:34 pm There is water. They know how to extract it. Their vehicles are - GOG April 20, 2023, 9:18 pm The moon and Mars are archaeological gold mines. - GOG April 20, 2023, 7:31 am Martian dust plays a high part in maintaining the NASA secrets. - GOG April 20, 2023, 3:19 pm For example the attached video link - GOG April 20, 2023, 3:55 pm Sand dunes? Hahaha NASA. We are not stupid. - GOG April 20, 2023, 5:42 pm The latest update on rebar and wire mesh images from Mars. - GOG April 20, 2023, 8:25 am Why Does The Universe Look Like This? - DFM April 17, 2023, 6:34 am Because you are looking at the master computer. It’s a brain. - GOG April 20, 2023, 7:19 am Are we made of math? - DFM February 25, 2023, 7:35 pm Reification fallacy - urnlfn March 1, 2023, 8:16 pm Re: Reification fallacy - DFM April 17, 2023, 4:57 am (no subject) - DFM March 12, 2023, 10:37 am Antikythera Mechanism V2: A Modernized Reproduction - DFM April 8, 2023, 10:23 pm It was an orrery - urnlfn April 13, 2023, 8:32 pm Indeed it was. - DFM April 17, 2023, 4:45 am The Time Traveler's Wife - Free movie on YouTube - Ken C March 14, 2023, 11:44 pm 5 Mysteries About The Universe We Haven't Solved - DFM February 23, 2023, 2:03 pm Not sure about the first one - urnlfn February 25, 2023, 7:28 am NONE of them have yet been solved. - DFM March 1, 2023, 6:09 am The earth’s core has stopped its rotation. - GOG February 4, 2023, 11:40 am If the Universe Formed from Nothing, Who Created the Nothing? - DFM December 31, 2022, 8:50 pm It’s impossible to create nothing. It simply does not exist.? - GOG February 4, 2023, 11:32 am Thirty years ago, half of the population would be diagnosed with cancer in their lifetimes, and - urnlfn February 4, 2023, 8:58 am It’s another massive scam. The bio-weapon (gene therapy jab) - GOG February 4, 2023, 11:25 am The Migrating Goldilocks Zone - DFM January 31, 2023, 8:38 am Proposed Internal Heat Source of Earth - DFM January 21, 2023, 6:38 pm I think you have it backwards - urnlfn January 25, 2023, 3:42 pm I did NOT exclude radioactive heat. This is an ADDITIONAL heat source. - DFM January 27, 2023, 5:58 am Gravity is not a force per se - Across the universe January 19, 2023, 9:39 pm Gravity results from quantum mechanical interactions, just like every other force - urnlfn January 25, 2023, 3:55 pm The Controversial Role of Oxygen in Animal Evolution & Diversification | GEO GIRL - DFM January 16, 2023, 3:53 pm Rare Earth Elements - DFM January 13, 2023, 6:09 am Fermilab lecture - The birth, life, and death of the universe - urnlfn January 4, 2023, 5:22 pm "I've come up with my own theory. " Tell me about it. - DFM January 6, 2023, 6:45 am I don't want it to become common knowledge, as it would eliminate any potential benefits - urnlfn January 6, 2023, 9:32 am IMO, artists should benefit from their creativity, authors from their books, inventors from their - urnlfn January 6, 2023, 11:59 am Why Is Everything Made Of Atoms? - DFM January 5, 2023, 11:35 am Is Dark Matter Real? - with Sabine Hossenfelder - DFM January 5, 2023, 7:49 am Star Crash: The Explosion that Transformed Astronomy - DFM January 2, 2023, 5:22 pm Halteria - first known virovore discovered (eats chloroviruses) - urnlfn December 30, 2022, 2:51 pm Thanks. - DFM December 31, 2022, 8:52 pm The Warped Side of the Universe: Kip Thorne at Cardiff University - DFM July 12, 2020, 10:40 am Still Don't Understand Gravity? This Will Help. - DFM December 29, 2022, 3:18 pm I wish I was formally educated in General Relativity, then I could more thoroughly refute it - urnlfn November 17, 2022, 4:42 am WOW, do you misunderstand General Relativity TOTALLY. - DFM November 22, 2022, 4:30 pm I knew you would say that - urnlfn November 22, 2022, 5:41 pm Black Hole Information Paradox Is Explained In My Post Here - DFM November 23, 2022, 6:43 am I mean come on... - urnlfn November 22, 2022, 5:48 pm "Picture that in 3 dimensions. I can't." Easily, except that curvature is in FOUR dimensions. - DFM November 23, 2022, 6:52 am I don't have the background to make an argument sufficiently technical to pass peer review - urnlfn November 23, 2022, 2:23 pm Simple Proof Space Is Curved. - DFM November 28, 2022, 6:56 am The fact that we understand that light is following a curve implies that there is a straighter line - urnlfn November 28, 2022, 5:29 pm OK. DEFINE a straight line in REAL space-time. I dare you. - DFM December 3, 2022, 4:28 pm A straight line connects the centers of mass of two massive bodies - urnlfn December 3, 2022, 5:13 pm MANY POSSIBLE lines connect the centers of mass of two massive bodies. - DFM December 4, 2022, 6:15 am Only if you assume that space is malleable. i don't believe it is. - urnlfn December 9, 2022, 9:20 pm You can define neither curvature, not the character of a straight line. - DFM December 10, 2022, 3:31 pm Incomprehensible mathematical gobbledygook. - urnlfn December 10, 2022, 3:46 pm Comprehensible mathematical geometry. - DFM December 12, 2022, 8:20 pm I don't believe GR is the end of the story - urnlfn December 13, 2022, 3:22 pm On a Macroscopic scale, GR has passed every experimental test with flying colors. - DFM December 15, 2022, 6:12 am GR nevertheless has limited utility and is therefore not the ultimate theory - urnlfn December 15, 2022, 11:02 am In Science, There NO ultimate theory. - DFM December 16, 2022, 5:35 am Correct - urnlfn December 16, 2022, 10:04 am No. But GR cannot be replaced by a theory that FAILS to account for curvature of space, - DFM December 18, 2022, 10:14 am Reification fallacy - the map is not the territory - urnlfn December 18, 2022, 2:15 pm "The same predictions can be achieved by other mechanisms." - DFM December 19, 2022, 8:17 pm Not true. Astronomers distinguish between geometric and apparent locations of bodies - urnlfn December 19, 2022, 8:38 pm In Physics, it is IMPOSSIBLE to neglect speed of light delays and - DFM December 20, 2022, 5:27 am Depends what questions you are asking, and what answers you are looking for - urnlfn December 20, 2022, 10:40 am It is IMPOSSIBLE to assume that space is not curved and still have - DFM December 20, 2022, 2:17 pm Laws of motion work just fine without curved space - urnlfn December 21, 2022, 1:57 am No, they do NOT. Without curved space-time the essential - DFM December 21, 2022, 5:48 am If you don't get too close to a spheroidal mass, Newton's laws work great - urnlfn December 21, 2022, 8:30 am It is NOT Possible to explain without reference to curved space. - DFM December 21, 2022, 10:38 am Nonsense. Even Kepler's laws are sufficient. - urnlfn December 21, 2022, 1:59 pm Kepler's Laws are NOT sufficient if high accuracy is required. - DFM December 21, 2022, 6:04 pm GR is accurate and time tested, but there is something wrong with it - urnlfn December 22, 2022, 2:56 am "The only issue I have is formalizing it." Ay, there's the rub. - DFM December 24, 2022, 3:24 pm Nope. Doesn't work like that. - urnlfn December 24, 2022, 9:12 pm Alex Filippenko on Supernovae, Dark Energy, Aliens & the Expanding Universe - urnlfn November 19, 2022, 10:59 am Re: The Warped Side of the Universe: Kip Thorne at Cardiff University - Charles R August 27, 2022, 5:25 am Ediacaran Organisms: Were These The First Animals? - DFM December 19, 2022, 8:22 pm 500 years of NOT teaching THE CUBIC FORMULA. What is it they think you can't handle? - DFM December 16, 2022, 6:01 am Crazy Science Facts [contains very few errors] - DFM December 13, 2022, 2:40 pm

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