StrandedonEarth

This is what happens when you hyperspace-ram something…

DART's last thought: "I wonder if it will be my friend?"

Now we wait for the telescope images to come in…

Looked like a bullseye to me!

Although it usually blows…

Was able to surf the thread just in time to discover I haven’t missed it. Now running the NASA feed on YouTube on the Roku TV with now exactly 13 minutes to go… mark!

Hmmm, but if the rubbing alcohol is not in a pouch, it will evaporate more easily than the water, and carry away heat via evaporative cooling. So will water, but it evaporates more slowly. I don't know how the calculus works out in terms of heat capacities / heat of vaporization, etc, as to which is actually more effective per unit mass. On a side note, I've noticed spilling heptane on my nitrile gloves at work feels a lot colder than water, even though the water and heptane are at the same temperature, because of the rate of evaporation. You need the same amount of delta-v. You need more thrust (which likely means heavier engines) to lift it, and more total impulse to impart the same delta-v to a heavier mass, which requires more propellants, and then the "tyranny of the rocket equation" rears its ugly head....

Brittle, as in breaks instead of flexes. When the Ship flexes, vibrates, or otherwise changes shape ever-so-slightly, the tungsten will chip, shatter, or otherwise flake off. Early plans for Starship skipped tiles for a “sweating methane” solution, but I guess the math or sims didn’t work out… More layers of anything adds mass. Mass in spaceflight is bad.

I've heard that the biggest danger is cars moving at different speeds on the same road. Lane changes become quite dangerous when traffic is coming up the other lane 30+kph faster (speaking from experience...)

Works in Canada!

I believe the plan was to land little greenhouses to experiment with growing things on Mars. Humans on Mars were not part of that plan. I think it was discussed in the book about the history of SpaceX, “Liftoff…” by Eric Berger, but I could be wrong about that.

That makes a much better phone wallpaper than my last one of the crew arm connected to crew Dragon

What whirlygig is that?

It’s nice to see fire in all the right places and none of the wrong ones at Starbase

Yeah, some of the procedural dramas my wife and I watch fall into the category of “but they wouldn’t do it that way!” I’m not even in that industry and I know that if they tried to do it that way they’d get fired if they didn’t get killed.

Something like that, yes, but wanting to use text instead of email. Since not enough people check email often enough. Although there is at least one whose phone is off unless out of the house, so we'd end up using both anyways...

As simple as possible. Text message to phone, primarily for urgent notifications. No app for the strata members to have to get, just whichever council members decide to use it.

Oh fer.... why does everything have to be so difficult....? My wife is on our 88-unit strata. Strata is wanting to shift away from archaic email that nobody* checks regularly anymore. A text-based solution is considered optimal. Ideally not a typical group message where all the numbers (if not names) are shared (privacy concerns) and any replies go to everybody. It's like I'm so close to the solution I can taste it, yet device/tech yanks it out of reach like Lucy pulls the football from Charlie Brown**. There's a setting in iPhone that should send group texts individually, although a family test still appears to be a shared group message. I can create a group of contacts, but the messaging app won't find the group to add, although the mail app can find the group. *** I've found a workaround, disabling iMessage appears to allow sending multiple SMS messages in a BCC fashion. But still no contact group and can't name the message thread, need to pin it to keep the "strata message thread" easy to find. But wasting "pinned contact" space on strata biz? Yuck. And turning iMessage on and off is a hassle, affecting other communication. We found one commercial solution, Project Broadcast, which is sort of what we're looking for, but not ideal. What I envision is a platform similar to PB, which provides a "Contact number" (cell/mobile number) to broadcast from. This number would be accessible from an app or webpage, by those with the proper login credentials (strata council members). News (water turned off, work being done, snowplow due, etc) could be broadcast to everyone in the strata via text (iMessage, SMS, MMS, whatever). Questions or issues could be presented to strata council by messaging this number, without every resident getting pinged and seeing the message. Note that the number not be tied to an actual phone for one person to monitor, but all strata council members could be pinged by an app. Does anyone here know of a solution that doesn't cost an outrageous amount, or feels inspired to build a solution for this sort of situation? *close enough to be accurate ** I think I need to create a meme for that. *** I seem to have found some older how-to's (5+ years) for doing this, but I can't seem to make it work, I dunno if the info was out-of-date and things have changed or what the heck.

Very high apogee? how does that affect trip / return time?

Two thoughts: 1. They could shut down three chambers to remain symmetrical. Or the asymmetry of losing one chamber may be within the control authority to handle. 2. Probably get more control authority with gimballing than throttling close-together small chambers. But that’s just a gut feeling that I haven’t backed up by doing the math (no numbers to work with…)

Don’t forget to roll the ’r’

It ain't easy healthy being green...

When we bought a house with my mom she liked the backyard, saying if times went tough we could grow food!