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surfingyt (Member Profile)

surfingyt says...

this mask isnt for stopping the spread of infection. its for training in low oxygen environments or at altitude, so you perform better when surrounded by more oxygen.

newtboy said:

unfortunately they all have front mounted discharge valves, allowing spit and phlegm to spray out at face level when you breath hard, cough, or sneeze, almost like there's no mask at all. These masks are useless to stop the spread and should be labeled clearly indicating that. It's similar to the idiots who wear mesh masks pretend they're functional.
For a mask to work against covid spreading, it must filter exhalation of all droplets, those with exhaust ports do nothing.

The Whoosh Bottle

newtboy says...

I actually did this as my high school chemistry project. I used 70% rubbing alcohol, 90% rubbing alcohol, and pure ether (don't try that at home, kids). You can get a number of different effects, only some of which were seen here.

As I recall, there were 5 distinct effects I noticed.
First, and most exciting, the jet. This was just a 2-6 foot jet of flame out the top, I surmised it was caused by low oxygen inside the glass making for a poor partial burn inside until the pressure pushes out enough unburnt vapor to burn outside. Depending on the fuel (both vapor level and fuel type), this could last up to 10 seconds.
There's a 'neck burn', where the flame hovers just inside the neck and just burns there, apparently in equilibrium, like an oil lamp.
There's the fire ball, which is just as it sounds, a round ball of fire, usually hovering in the top 1/3 of the bottle, sometimes bouncing up and down, but always centered.
There's the flash, where the entire interior flashes repeatedly, as seen in this video. This can end much more violently than it did here, 'pinging' the bottle loudly as the flashes get more powerful. When this happened with ether, we stopped, afraid we were making a glass bomb surrounded by high school kids.
Finally was the fire plane, also seen in this video, which can ascend, descend, or hover in place. This was my favorite effect, especially when it hovered and lasted up to 30 seconds long.

Good times, good times....FIRE GOOD.

Tripod Fish Stands on Three Legs

Truckchase says...

>> ^rich_magnet:

Wow. Good thing the HDD wasn't 100% used by the time they came accross that beaut. "Swimming lazily away"? That may be the creature's most desperate flight attempt possible given the super low-oxygen environment at that depth.


Interesting too that it's a VCR with a HDD. I want an underwater Betamax that records on LaserDisc.

Tripod Fish Stands on Three Legs

rich_magnet says...

Wow. Good thing the HDD wasn't 100% used by the time they came accross that beaut. "Swimming lazily away"? That may be the creature's most desperate flight attempt possible given the super low-oxygen environment at that depth.

Deano (Member Profile)

bamdrew says...

Did you know that some invertebrates (like the octopus and cuttlefish) have a colorless blood that turns green-blue when oxygenated? Instead of iron, their respiratory system makes use of copper to transport oxygen. The theory is that in cold, high pressure, low-oxygen places this mechanism functions more efficiently.

Shpongle - Divine Moments of Truth

djsunkid says...

OMFG i love this video.

When I saw Simon play live, he started with this track. I had just travelled 1200km, the place was absolutely packed. Hungry, tired, displaced, lightheaded from low oxygen, and here is my HERO. The GOD of psychedelic trance music is right in front of me. He's THERE. Just there. I'm standing in a drained pool (!), the bass bins are quad-18 woofers, two per channel, inset in the side of the pool- right next to me. This sounds SO AWESOME.

When simon smiled and mashed play, the deep, deep deep string sounds came from around, and everybody who was there stood in silence. I was not the only person who felt this, I am sure. When he played DMT, I BURST into tears. It was the most emotionally charged musical experience I have ever had.

It felt like... I can't even explain. It was catharsis.

I hope this makes it out of the queue.

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