Nydcn77 t1_jdy1fit wrote on March 28, 2023 at 12:46 AM

Reply to 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

Already solved. Rendezvous with Rama. Central axis docking.

Nydcn77 t1_j7jqhky wrote on February 7, 2023 at 7:53 AM

Reply to How does water factor into rocket launches? by teryret

Deluge systems have been used for a long time. At least as far back as Apollo. It absorbs the shock waves from all that thrust. It does some cooling but mostly absorbing shock by flashing to steam and cushioning the pressure waves. It's still basically a massive controlled explosion. You can see it really well in the Shuttle launches but not so much Apollo. What you also see is that the pad is pretty much incinerated. One of the reasons for long turn around times. As far as ditching the pads are raised and there is a large pit there to direct the thrust away from the pad. Search for launch pad videos on you tube.

Nydcn77 t1_j4o3gks wrote on January 17, 2023 at 1:59 AM

Reply to TIL Generally, hobbyists or casual photographers can expect their digital cameras to last five years, as determined by the shutter count or number of digital images a camera can take before the shutter stops working by Ok_Copy5217

Yeah. My SX30 is way older and going strong. So are my other two over 5. And yes I am published and have approx 4000 images saved after deleting probably 80% of what I shoot. Over 5 is normal. Have to sell a good number to justify replacing that frequently.

Nydcn77 t1_ixolarz wrote on November 25, 2022 at 1:46 AM

Reply to Spotted an asteroid/meteor but there's nothing online about it? by OkLibrary6417

Google search for any sky watching cameras or networks within say 25 km of you. If there are any they may have picked it up. Or any astronomy groups as they may have sky watch observers. Any industry close to you that may have security cameras pointed in that direction.

Nydcn77 t1_ix1mac0 wrote on November 20, 2022 at 1:18 AM

Reply to What would Jupiter look like from here if it was as close as Mars? by SaltyPea8

Interesting. I can see the cloud bands with my cameras telephoto. I would surmise that yes you would see the bands. But not for long. Jupiter's gravity would yank our orbit all to hell.