"Offtopic-posts-topic" NSFW

[mark.f]

I am building a vacuum pump and wanted to ask you if you know some cool looking experiments that can be done with it ??

Sucking a golfball through a garden hose?

[POLAND_SPUD]

Sucking a golfball through a garden hose?

Actually know a very talented girl who can do that 8)

I am testing it as we speak and I am having problems with getting water to boil at room temperature (well ok more like 80 deg C). Not sure if it's because of leaks or boiling happens but the fridge can't keep up with it. Well it's a shame as that is probably one of those things that a vacume pump should be able to do

EDIT
Just achieved boiling but with a vodka glass filled with water - not the entire pressure vessel
Apparently the problem is two fold:
1. Compressor flow is limited
2. Near boiling condition occur and cool the water down very rapidly

So before pressure drops enough for boiling to occur the temperature of it drops to room temperature

EDIT #2
Realized I recently bought a nice pressure sensor and a TFT LCD screen - so what can you do if you have a pressure sensor and you're testing a vacuum pump ??
This was quick, lighting is bad but just had to test it. There are still some tiny leaks I couldn't fix (neither got a pipe wrench nor even pliers)
[youtube][/youtube]

Anyway been playing with the sensor for a while and I am seriously considering getting back to spudding just to have a chance to integrate electronics, sensors and pneumatics together.
What do you think of this sensor ? http://allegro.pl/czujnik-cisnienia-700 ... 90498.html
Less than $10 and goes up to 100psi - good enough for a propane/butane regulator, huh ?
Remember those fast switching valves I bought?? Well I guess I can finally find a use for them

(Might not want to click this video BTW - has in stream ads.. pasting it because I can't find the original thread on them)


[youtube][/youtube]

[jackssmirkingrevenge]

I am building a vacuum pump and wanted to ask you if you know some cool looking experiments that can be done with it ??

Cast without bubbles

Collapse a 200 litre metal drum, I've done it several times at my former employ, great fun

[youtube][/youtube]

Not sure if it's because of leaks or boiling happens but the fridge can't keep up with it.

Both. Leaks make a big difference. Did you try making a condenser between the water vessel and the pump to avoid saturation?

This is a bit hypocritical since many people will see it on their iWhatevers, in the same way that Fight Club is a Hollywood movie, but nonetheless well done:

[youtube][/youtube]

[POLAND_SPUD]

Pure awesomeness
[youtube][/youtube]

[jackssmirkingrevenge]

isn't it a rehash of POWERTHIRST!!!!

[youtube][/youtube]

[jrrdw]

isn't it a rehash of POWERTHIRST!!!!

BHAHAHAHAHAHAHAAAA! Ice tea is coming out of my nose.... :bom: AHHHHHH! That video down right funny. AHHHHHH

[jackssmirkingrevenge]

You'll be so fast Mother Nature will be like "S-L-O-W D-O-W-N" and you'll be like "FU¢K YOU" and kick her in the face with your ENERGY LEGS!

edit: hehe these are brilliant

[youtube][/youtube]

[POLAND_SPUD]

Here our friend got unlucky
[youtube][/youtube]

Yeah it's Jorg and it's bit graphic

[jackssmirkingrevenge]

wasn't this a fake promo?

[POLAND_SPUD]

yeah I assume so - let's face he's experienced and wouldn't use a backstop not placed at an oblique angle

but damn that's one clever way to get it viral

[jrrdw]

wasn't this a fake promo?

Yes, if you go to his channel and watch the full video he exsplains why he did it. A job well done at that!

[Talk]

"Tipp" Headshot

[jackssmirkingrevenge]

I read the term "Schrödinger's Rapist" today and found it very amusing

[POLAND_SPUD]

Lol respond to that with the concept of 'Schrodinger's willing s### who pretends not to be interested, but still totally wants it' and watch comment section explode

[jackssmirkingrevenge]

Let them have their petty rants.

http://www.reddit.com/r/TumblrInAction

Why does this subreddit exist?

It only validates the incoherent ramblings of tumblrinas that should simply be ignored.