would it be possible to spray liquid nitrogen out of a weed killer kind of back back ?? ad is liquid nitrogen hard to get and is it expensive???

would it be possible to spray liquid nitrogen out of a weed killer kind of back *pack

no, the pressure would build up and it would explode, providing the coldness didn`t shatter the plastic like it were glass

That makes me want to try it! Why would you want to spy it at things??

HUH?

smokey-nitro said in post #2 :

would it be possible to spray liquid nitrogen out of a weed killer kind of back *pack

 

 

He wants to spray liquid nitrogen out of a weed killer back pack??

Stop making pointless posts.

Serious? What's wrong with my post?

I don't think I get the first question then.

ok i was not gonna let my idea out but i was thinkin of makin a back pack or rather designing one that sprayed LN2 at chewing gum on the ground and then shatter it and scrape up off streets its ingenous jus designing it is hard i was think of a presure think that let out presure when it got to much and the presure in side would pump it through so no pumpin and lower presure ta-da

Told ya he was going to spray it!!

-Demosthenes- said in post # :

Told ya he was going to spray it!!

It's almost as if you looked at what he posted, then posted it again. Spooky.

smokey-nitro said in post # :

ok i was not gonna let my idea out but i was thinkin of makin a back pack or rather designing one that sprayed LN2 at chewing gum on the ground and then shatter it and scrape up off streets its ingenous jus designing it is hard i was think of a presure think that let out presure when it got to much and the presure in side would pump it through so no pumpin and lower presure ta-da

You'll need an awful lot of expensive equipment to turn nitrogen into a liquid form, and keep it that way. It would be dangerous and horribly impractical.

 

Hot jet chewing gum removers work fine. Liquid nitrogen is a bit... well, overkilly.

You need to keep it cold, and if you don't freeze your back off, it would probably warm up and explode. That stuff is less than -200 degrees!

haha shut up

Hey! Don't do that to me!

Would make that backpack anyway?

Seems like it would shatter the street or the sidewalk also.

Yes, it would.

It could be use as a wepon, right? That would be awesome!

I think the word is 'messy'.

I think the word is "devastating" Seriously, freeze someone and touch them, they'd shatter!

A ridiculous idea thats not only totally unecessary, but dangerous, expensive and pointless. Liquid N2 has loads of practical applications already.

Like shattering flowers?

I'd pay good money to see things get shattered! He could make a TV show!

Dip a flower in it, tap it, and POOF, no flower! Oh, and you can make ice cream with it. It's supposed to be really good.

I have worked with liquid nitrogen. I even used it to cool new valve seats to insert them into pre-heated heads (nice tight fit). It's a low pressure medium which can be kept in a thermos. It's not particularly dangerous (although I wouldn't dip a finger in it), and it's actually very good at freezing and shattering chewing gum from pavements. Give it a little spray, the apply a steel scraper and it comes off very cleanly.