Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Dry Water

en.wikipedia.org

Post reply on HN
Print view View original

91–100 of 192 posts

Re: Dry Water

#91

Post by pvaldes »

RandomInteger4 wrote: post #34
adw wrote: post #9

Earlier quoted context omitted.

Yeah, modulo particle size ( https://www.foodnavigator.com/Article/2018/01/18/EFSA-raises... ) it's inert (used as an anticaking agent, additive number E551), but don't breathe it in; silicosis is not much fun. (The FDA limit is 2% by mass of product, but it's silica. Silica is _extremely_ chemically stable.)

Could that lead to cysts in the GI tract?

Would be easy to investigate. Have desert people more cysts in the GI tract than other people? Digestive tissue is being distroyed and sheding constantly on the other hand, so probably not.

Re: Dry Water

#94

Post by kccqzy »

user5994461 wrote: post #43

It doesn't say how to get the water back from the powder.

I'm guessing but, boil it and condense? I'm guessing that the great increase in volume when reaching the boiling point is enough to rupture or destroy the coating.

Re: Dry Water

#95

Post by orf »

daferna wrote: post #83

Throwback to the greatest debate of all time: https://www.youtube.com/watch?v=TPDdRrMVEnA

This is amazing. They both give pretty compelling arguments.

Can anyone else throw anything else into the ring? Is a fish wet?

Re: Dry Water

#96

Post by zokier »

Splines wrote: post #39
djrogers wrote: post #24

Apparently one can make dry water with a blender - mix fine silica powder and water in a 1:19 ratio (by mass) and put it in a blender for a few minutes. I'm not going to risk my blender to try it, so who's first?

The only video I could find of the process: https://www.youtube.com/watch?v=bVAPUxSH_6Q I'd like to see someone interact with it - is it possible to get "wet" from dry water? Can you get the water back out?

That gives an useful keyword to search for, "Aerosil". Finds among other stuff this document, which describes various uses of this silica stuff: https://glenncorp.com/wp-content/uploads/2016/07/Aerosil_Sip...

Very fascinating peek to behind the curtain of cosmetics industry. The "dry water" stuff is in the last pages. Apparently their advertised "powder to cream" cosmetics are popping up in the market. They have a demo video of the stuff, but in that it doesn't seem to work all that well: https://www.youtube.com/watch?v=TmQTOU1KBkw

The commercial products using it (or similar stuff) seem to work fine though: https://www.youtube.com/watch?v=QURu28QTlMU https://www.youtube.com/watch?v=C_Bcyo4GmrY

(and now youtubes algorithms will be confused why I'm suddenly looking at makeup videos at the middle of night)

Re: Dry Water

#97

Post by byproxy »

daferna wrote: post #83

Throwback to the greatest debate of all time: https://www.youtube.com/watch?v=TPDdRrMVEnA

Hmm...so the condition of being wet is all relative! There can be no wet without dry. No hot without cold. No happy without sad.

Re: Dry Water

#98

Post by e40 »

daferna wrote: post #83

Throwback to the greatest debate of all time: https://www.youtube.com/watch?v=TPDdRrMVEnA

I like how to increase the validity of his argument he took off his shirt!

Re: Dry Water

#99

Post by eganist »

TimTheTinker wrote: post #82
gvb wrote: post #27

Earlier quoted context omitted.

Blenders can be replaced. I would worry more about silicosis. https://en.wikipedia.org/wiki/Silicosis

Or pneumonoultramicroscopicsilicovolcanoconiosis. Been waiting for 25 years to use that word seriously. :) https://en.wikipedia.org/wiki/Pneumonoultramicroscopicsilico...

You've just unironically and contextually used what's currently the longest recognized word in the English language in an unforced manner.

There has to be a prize for this.

Post reply on HN