Justin Roskamp

Aerospace engineer with a dash of physics 🧂 UIUC ‘22 🧡💙 TAMU '24 👍🧑‍🚀 Collins 📻🛰

[Justin Roskamp @JustinRoskamp]

@jx The station is expensive because of humans—not because of cooling. That isn't a valid argument.

[Justin Roskamp @JustinRoskamp]

Love the channel, disappointed in the hate-driven ignorance. Distributed compute in LEO is a real debate to be had; cooling things in space is not

[JerryRigEverything @ZacksJerryRig]

You know the reason your Stanley or Hydroflask is so good at keeping your water cold is because there's a vacuum inside the walls of the thermos.

Heat can't conduct in a vaccum. And "radiated" heat is ineffective at the temperatures processors operate at.

This satellite will be like plugging in your gaming PC without a CPU cooler. It'll be dead in minutes.

[Justin Roskamp @JustinRoskamp]

Just muted this. All this drivel over a paper design, just crazy

[Justin Roskamp @JustinRoskamp]

Love the channel, disappointed in the hate-driven ignorance. Distributed compute in LEO is a real debate to be had; cooling things in space is not

[Justin Roskamp @JustinRoskamp]

@TKovacsIII @ZacksJerryRig Don't attack him. I just want him to learn more about what he's posting about. He has influence & a good opportunity to help others learn, too.

[Justin Roskamp @JustinRoskamp]

@william_sh36802 @AJXD_2 @ZacksJerryRig Gandalf the troll, you've won this time. You've wasted my time on my day off 😭

[Justin Roskamp @JustinRoskamp]

@william_sh36802 @AJXD_2 @ZacksJerryRig Now you're just making things up, so I'll let you be

[Justin Roskamp @JustinRoskamp]

@newshound1337 @william_sh36802 @ZacksJerryRig ? I am only attempting to correct misinformation Zack has shared and science illiteracy that his post propagates. I'm sorry that has offended you

[Justin Roskamp @JustinRoskamp]

@william_sh36802 @ZacksJerryRig If a cancer treatment is ineffective, it doesn't affect the cancer. That's the kind of interpretation many people are reading it with, and therein lies the problem & the reason he needs to remove the post and correct himself

[Justin Roskamp @JustinRoskamp]

@william_sh36802 @ZacksJerryRig He said cooling chips in the vacuum of space doesn't work (i.e., it is "ineffective"). He's saying it's impossible to do. It is absolutely possible and is effective and is done all the time for other high heat loads

[Justin Roskamp @JustinRoskamp]

@fori920 @ZacksJerryRig You do not have to spend billions. Many keep comparing it to the ISS. That was only billions because it is a space station designed to house humans, and doing *that* is extraordinarily expensive. Designing space radiators is not.

[Justin Roskamp @JustinRoskamp]

@KadakKaspar @ZacksJerryRig His post directly suggests it is impossible, as he implies they are putting a bare chip in space and expecting it to not die. That's not what they are doing, so he is saying the design is impossible without understanding the science of cooling in space.

[Justin Roskamp @JustinRoskamp]

@Jarothz @ZacksJerryRig He says it's ineffective, which is him saying the design is doomed because it's impossible to implement. Radiative cooling (via internal conductive/piped methods) is used all the time in space, and it works very well! It is not an insurmountable problem at all

[Justin Roskamp @JustinRoskamp]

@TomboWizo @ZacksJerryRig The advice for those seeking higher education is to do so at different universities precisely because you want to avoid the risk of gaps in knowledge and experience. I never imagined Zack's followers would start attacking higher education. How far he has fallen.

[Justin Roskamp @JustinRoskamp]

@william_sh36802 @AJXD_2 @ZacksJerryRig "Radiated heat is ineffective" quite literally implies he is saying cooling these satellites (so they continue to function) is impossible. You are the one who needs to brush up on reading comprehension, my friend.

[Justin Roskamp @JustinRoskamp]

@william_sh36802 @ZacksJerryRig That is the problem; it *isn't* ineffective. By saying it is ineffective, he's saying it's impossible to cool. That isn't true. You and Zack are the ones not understanding correctly. I would appreciate being able to help educate without being attacked by Zack's fans.

[Justin Roskamp @JustinRoskamp]

@toobootinandlo1 @ZacksJerryRig "Radiated heat is ineffective at the temperatures processors operate at" is simply incorrect. Cooling like that happens all the time in space. His post is scientifically uninformed. He should learn the science & remove the post.

[Justin Roskamp @JustinRoskamp]

@SharonSharalike I don't have the info to do the calculations, but I know infrastructure and land are getting more expensive down here. GSE is getting more expensive, satellites can be cheap at scale, and launch might get cheaper if Starship becomes fully reusable. As ever, investment is a gamble

[Justin Roskamp @JustinRoskamp]

@SharonSharalike Smart to be hesitant! The sats are the "easy" part & will get cheaper at scale, then Starship needs low $/kg to get them up there. If GSE + satellites + launch are cheaper than infrastructure + land on Earth, the business model works. Those are the things to watch.

[Justin Roskamp @JustinRoskamp]

@SharonSharalike I don't know & won't claim to. The goal of Starship is to make mass & volume cheap & easy to carry. I question the business case & the sustainability of thousands of large craft—but I *don't* question whether the satellites will work. They are competent enough to make them work.

[Justin Roskamp @JustinRoskamp]

@ZacksJerryRig @KenKirtland17 Zack, you are way out of your depth with this one. Have a read through how satellites (NOT the ISS, because it's ONLY expensive due to human factors (my area of study) that don't exist on other satellites (my area of work)) cool heat loads, or just delete the post and let it go

[Justin Roskamp @JustinRoskamp]

@KenKirtland17 One of them even accused me of riding Elon's cock simply because I pointed out Zack has a critical misunderstanding of physics. @ZacksJerryRig needs to take the post down and choose to learn instead of him & his fans doubling down to choose science illiteracy