collegefurtrader t1_jef94pf wrote on March 31, 2023 at 4:09 PM

Reply to comment by GrimReality131 in Gun injuries in US surged during pandemic, CDC study shows by Picture-unrelated

Letting it rust

collegefurtrader t1_jecw4ub wrote on March 31, 2023 at 2:17 AM

Reply to comment by bts in New lithium-ion battery recycling method that’s energy efficient and needs no added chemicals by avogadros_number

Thats not what the abstract says

collegefurtrader t1_jdy83oe wrote on March 28, 2023 at 1:36 AM

Reply to comment by Trinull in Hello everyone . I am very interested in space megastructure. such as mckendree cylinder or bishop rings. But suppose we built it. How can a spacecraft dock with it ? Knowing that these huge structures rotate at huge speeds to generate a gravitaty similar to Earth's by Dizzy_Ad3353

I could see a proboscis with a bunch of docking ports and a slip ring connection that cancels the rotation. Then you can dock more than 2 things.

collegefurtrader t1_jdxpdcc wrote on March 27, 2023 at 11:17 PM

Reply to comment by 0ld_Wolf in Hypothetical question by jd-sutton

There’s a whole constellation of US spy satellites in orbit that are very similar to hubble, and they track the earth just fine. Exposure times are much shorter too.

collegefurtrader t1_jdrjhtk wrote on March 26, 2023 at 5:03 PM

Reply to comment by tribblydribbly in Wondering if anybody knows what I saw in roughly the fall of 2005. by tribblydribbly

Yea I saw one once, very cool

collegefurtrader t1_jdrgk8f wrote on March 26, 2023 at 4:43 PM

Reply to Wondering if anybody knows what I saw in roughly the fall of 2005. by tribblydribbly

Possibly an Iridium flare.

http://www.satobs.org/iridium.html

collegefurtrader t1_jdp80b1 wrote on March 26, 2023 at 2:35 AM

Reply to comment by Graybie in Latest video of the Ingenuity Mars Helicopter kicking up dust and taking off for Flight #47. Ingenuity is well beyond its warranty at this point. The video was captured by the Mastcam-Z imager aboard NASA’s Perseverance rover on March 9, 2023. by ICumCoffee

I guess my comment was a bit hyperbolic

collegefurtrader t1_jdp16je wrote on March 26, 2023 at 1:40 AM

Reply to comment by CarAtunk817 in Latest video of the Ingenuity Mars Helicopter kicking up dust and taking off for Flight #47. Ingenuity is well beyond its warranty at this point. The video was captured by the Mastcam-Z imager aboard NASA’s Perseverance rover on March 9, 2023. by ICumCoffee

And it’s basically a goof, an experiment. Built with cheap consumer hardware.

Exceeded expectations is an understatement.

collegefurtrader t1_jd15iru wrote on March 21, 2023 at 1:56 AM

Reply to Would it work to get 1G in a spacecraft going to Mars using acceleration? by OysteinM

Yes, if you have unlimited fuel and/or energy.

Unlimited energy solves a lot of problems.

collegefurtrader t1_jacbxes wrote on February 28, 2023 at 12:26 PM

Reply to comment by Siellus in Video of the Starlink V2 satellites being deployed. by DawgTheHallMonitor

Sometimes these things do have audio. The body of the rocket will transmit sounds from the mechanism

collegefurtrader t1_j815zzt wrote on February 10, 2023 at 9:28 PM

Reply to comment by allforspace in SpaceX on Twitter: Super Heavy Booster 7 completed a full duration static fire test of 31 Raptor engines, producing 7.9 million lbf of thrust (~3,600 metric tons) – less than half of the booster’s capability by allforspace

Nearly twice as much I guess

collegefurtrader t1_j78mhnt wrote on February 4, 2023 at 10:33 PM

Reply to How does water work in a closed container in space? by UnhappyLibrary2540

It will behave the same way as water on earth, the only difference is 1bar of pressure.

collegefurtrader t1_j6ejrq2 wrote on January 29, 2023 at 8:11 PM

Reply to Hypothetical question about centrifugal force? by morphikk

All motion is relative. If you are moving along a straight line out in space, and you want to start spinning, then you just do that. The linear motion means absolutely nothing because without reference to something else it doesn’t even really exist.