Question: is vacuum in space real?

[Starstruck69]

2 hours ago, GearsNSuch said:

They have some suction-based cleaning devices on the ISS.

So yes, there is a vacuum in space.

Is it a henry?

Edited April 8, 2019 by Starstruck69

[Starstruck69]

17 hours ago, JERONIMO said:

well, unexpected, thought it'll get one or to replies. not more than that. Thanks???, yet my question is at least partially anwsered if haven't been fully

I think the best answer i could give you is "it depends on what time you look"

[p1t1o]

On 4/7/2019 at 3:58 AM, JERONIMO said:

i mean, space vacuum has nothing in it, but there are some hydrogen, photons and other thing in space. so does vacuum really exist as we think of it?

Well, the parts between the stray protons is hard vacuum, but in essence you have the truth of it - space is actually full of stuff, especially in the middle of a galaxy like we are.

But hoo boy, just wait until you read about quantum foam and related work on the structure of space-time itself.

 

 

48 minutes ago, Starstruck69 said:

Is it a henry?

 

Its a Dyson Sphere

Edited April 8, 2019 by p1t1o

[Starstruck69]

11 minutes ago, p1t1o said:

 

 

 

 

Its a Dyson Sphere

Lol so thats where the budgets going.

On a more serious note i wonder if they use shake and vac?

Edited April 8, 2019 by Starstruck69

[Green Baron]

9 minutes ago, Starstruck69 said:

On a more serious note i wonder if they use shake and vac?

In opposition to stir and vac ?

[Starstruck69]

21 minutes ago, Green Baron said:

In opposition to stir and vac ?

 you can stir it or shake it if you so wish. Every vacuum should have one at the ready. The ISS smells of lemons apparently

https://www.glade.com/en-gb/products/powders/shake-n-vac

 

Edited April 8, 2019 by Starstruck69

[mikegarrison]

8 hours ago, Starstruck69 said:

Not forgetting dark matter! The plot thickens.

Or maybe just the vacuum thickens.

[RocketSquid]

The vacuum of space isn't a perfect vacuum (although, at any moment, some areas of it might be depending on how small we're allowed to slice), but it's the closest we're gonna get. 

[Gargamel]

On 4/7/2019 at 4:22 PM, JERONIMO said:

well, unexpected, thought it'll get one or to replies. not more than that. Thanks???, yet my question is at least partially anwsered if haven't been fully

 

On 4/7/2019 at 6:29 PM, Gargamel said:

Welcome to S&S. 

Seriously, do you see what you've done?   There are no "simple" questions in the S&S sub-forum.   Ask them about the variants of the Shuttle main engine, I dare ya.   That's 14 pages right there.  

This is where smart people come to feel dumber and smarter at the same time. 

Welcome aboard .  

[Lisias]

4 hours ago, Gargamel said:

Welcome aboard .  

And fasten your seat-belts.

[razark]

On 4/6/2019 at 9:58 PM, JERONIMO said:

so does vacuum really exist as we think of it?

For 99% of what you really need to consider it for, yes.

Unless you're a physicist, you probably don't need to think to much further into it, much like pi = 3.14159 being good enough for any practical applications, 3.14 for any day-to-day usage, and 3 for a back-of-the-napkin figuring.