The Coldest Place in the Universe - Ask a Spaceman!
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- Опубліковано 8 бер 2023
- Full podcast episodes: www.askaspaceman.com
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What’s the temperature of deep space? Can it get any colder than that? How do we even define temperature when there’s nothing around? I discuss these questions and more in today’s Ask a Spaceman!
Follow all the show updates at www.askaspaceman.com, and help support the show at / pmsutter !
Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Music by Jason Grady and Nick Bain. - Наука та технологія
Dr Sutter I know you sometimes entertain odd ball questions from time to time. I was rewatching original Star Wars and I was wondering, what kind of effects on a planetary system would a weapon like the Death Star have. If you could just blow up a a planet wouldn’t that wreak havoc on the whole system?
I wonder if the death star simply caused a large conventional explosion, or if it changed the entire planet into energy. If the latter, I am confident it would be very disruptive of more than the local SPACE TIME and the likes of nothing we have ever experienced.
I love this guy, I feel like he's a casual psychopath that would just say "hey, you ever wonder how cold it would feel if you just went out the air lock?" and you were casually say "we'll not really, but kinda?". He responds with "that's great!, I have also pondered this question!" with a great smile on his face. Then he proceeds to say, "Well lets check it out" and super quickly stabs me in the neck with a thermometer and I scream in horror and shock, and he quickly tosses me out the air lock, and I would probably look like I'm crying and freaking out, and he is just laughing through a port view. He is totally correct and this situation sucks for me, but at least humanity knows what happens to a human body in space and I guess I can die in horror and terror but Paul totally knows what happens to me.🤣
No as cauld as Scotland the now 🥶
😆😆😆 your comment made me laugh Thanx! I really can not imagine your coldness. Take care!
@@valerieharrison6292 no problem! Most welcome. You too
OMG.
I took the dive certification course in the 90s.
December 3 we went to do our open water final test, in Mukilteo, WA. 'Sound' familiar?
The entire class lined up on the bottom at about 25 ft depth, my instructor at the buoy line, and me opposite the group per his instruction.
I am unsure, to this day if, after testing my classmates, he forgot I was there, he figured I didn't need to do the test( actually true), or if he just couldn't see me. Vis was around 5 ft. By the time he was done with 9 tests, and just me sitting on the bottom in a wetsuit left, I was freezing, despite my double hand and feet wetsuit gear.
I really didn't feel like staying down there any longer.
I brought up the rear of that group quite happily. No one said a word. We all were then certified.
Funny thing is, the puget sound may be teeming with life, but it's typically is so hard to see, and plenty cold, I only went scuba diving once after our cert. Free diving is far more my style, and in warmer waters.
I have question how do black holes evaporate through hawking radiation if there is a Higgs field and supposedly gavitons constantly streaming into it (end of universe) they both would/do have mass therefore would counter hawking radiation (if I’m even asking correctly)
Which hypothetical particle will win out in 10^67 years, who knows!
That’s why I wasn’t sure if I was asking the question correctly Higgs field gives mass to black hole for it to evaporate through hawking radiation seems counterintuitive
@@dencope8668 Higgs field interacts with fundamental particle fields, giving particles mass. Who knows what happens inside a black hole but that mass energy is conserved inside and probably has nothing to do with the Higgs field directly.
Thanks for the video.made my day at work fun 😀
Heeey! Mechanics work on cars.
Refrigeration technicians work on refrigerators.
Fun fact- that thing in your kitchen you store milk and fresh food in is NOT a refrigerator, that is if it is no older than about 2015. That unit is a computer, and is designed to but not limited to keeping your food preserved.
17:37 - belly laughed!
That's only sometimes the coldest place in the universe! (How often depends on your opinion on the existence of intelligent life outside of earth). For example, for a very brief time (about two seconds) in 2021, the coldest place in the universe (barring some aliens maintaining colder temperatures) was in Bremen (at 38 picokelvins).
Awesome. It is always good to verify the little blank spaces of knowledge.
Now I have asked questions before. Maybe because they wre not deep enough or whatever. I never get a response.
What the hell. Here it is.
Mass bends Space. The Bigger the mass the more bending goes on. The Earth correct me if I'm wrong but Space-Time is bent towards the Earth at what appears to be. 9.8s/m².
We and all small mass objects are filtered out by the electromagnetic fields such as found in a floor or let's say the ground. The space continues straight through the Earth. Does it disappear in the Earth or does it just keep on going out the other side?
Same question but with something like a Black hole? Can it a black hole ever fill up with space?
So spacecraft that have "cooling systems" like JWST..How do they lose their waste heat? by radiating it away?🤔
Yup, some even have devices specifically for that. For example, the big panels that you see sticking off of the ISS are not all solar panels, some are radiators for dumping heat.
Yes.
What I was trying to ask does the Higgs field/ dark matter /supposed gravitons contribute to the growth of a black hole (in theory those fields are permanent and do contain energy) wouldn’t the Higgs field and all other fields have to collapse for hawking radiation to take effect (hawking radiation are virtual particles with zero mass )
You know enough to get yourself in trouble....
Haaaaaaaaa the Patreon ad reeled me in hook line and sinker.
Thank you for this video. It's hard to wrap my head around the hot and cold extremes of space so I just work with what's hot- ie Sun, stars, venus, etc and whats cold- Pluto, voidspace, etc. I think the extremes are just too difficult for our brains to comprehend.
take a jacket......and some sunsreen ☔
I miss your face
Exactly. But Good podcast. Thank you
Same thought.
Suns core 2.5 mil K? More like 14 iirc?
Io hotter than Earth? Sun’s surface temp 10,000 K? Really??
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