Latest posts · Page 2319

@Everman @AndyKiersz I paid most of my Tesla-related expenses too. Tesla last year was actually net negative comp for me.

@dealer_of_happy @Tesla One day’s grace, taking into account time zone confusion. Will revert tomorrow.

@nichegamer Edgy move

@SPEXcast @WentaiW @1DarknessSoul5 @SpaceX Good idea

@WentaiW @1DarknessSoul5 @SpaceX True. I’m a gamer & my boys are too. Starlink is designed to be great even for competitive twitch reflex games.

@cleantechnica Yup

@fcain @varunversion1 @Erdayastronaut @SpaceX Would love to do exactly that

@Cosmic_Penguin Agreed, sent a note to Starlink team last week specifically regarding albedo reduction. We’ll get a better sense of value of this when satellites have raised orbits & arrays are tracking to sun.

@fcain @varunversion1 @Erdayastronaut @SpaceX Exactly, potentially helping billions of economically disadvantaged people is the greater good. That said, we’ll make sure Starlink has no material effect on discoveries in astronomy. We care a great deal about science.

@John_Gardi @13ericralph31 @varunversion1 @Erdayastronaut @SpaceX Rotate on one axis. Magnetic torque rods for desaturation of momentum wheels.

@GoForStaging @13ericralph31 @varunversion1 @Erdayastronaut @SpaceX Yes, already planned. We avoid use of certain lower Ku frequencies specifically for radio astronomy.

@1DarknessSoul5 @SpaceX Aiming for sub 20ms latency initially, sub 10ms over time, with much greater consistency than terrestrial links, as only ever a few hops to major data centers

@13ericralph31 @varunversion1 @Erdayastronaut @SpaceX If we need to tweak sat orientation to minimize solar reflection during critical astronomical experiments, that’s easily done. Most orbital objects are close to Earth btw, as shown by this NASA density map. https://t.co/83MwIZAEP6 https://t.co/NllMXregRg

@varunversion1 @Erdayastronaut @SpaceX There are already 4900 satellites in orbit, which people notice ~0% of the time. Starlink won’t be seen by anyone unless looking very carefully & will have ~0% impact on advancements in astronomy. We need to move telelscopes to orbit anyway. Atmospheric attenuation is terrible. https://t.co/OuWYfNmw0D

@Erdayastronaut @SpaceX No, Raptor uses a large number of coaxial swirl injectors, which (we believe) achieves highest theoretical mixing/combustion efficiency.

@meme0boi Fair

@Erdayastronaut @SpaceX Super proud of SpaceX propulsion/test/materials team! One of hardest technology problems. New high temp superalloy & internal foundry needed to make it work. Foundry iteration interval is ~3 weeks from design to flight part vs ~36 weeks typical for aerospace.

@DJSnM Only a tiny amount. There is enough air to affect the satellites & allow some amount of yaw steering.

@SPEXcast @Erdayastronaut @SpaceX Propellant stays same, but almost everything else improves. Fundamental goal is minimize cost per ton to surface of Mars.

@Erdayastronaut @SpaceX Great video. Couple notes: Raptor designed for subcooled CH4/O2, so propellant density & thrust increase up to ~8%, as needed for mission. 380 Isp & up to 50% thrust/weight improvement over time. Merlin thrust/weight doubled from V1, but Raptor is closer to optimum.