I would like to know if this statement is scientifically correct, or if it's hyperbole, or if it's basically correct but requires qualification: "Most of the atoms that formed your infant body at birth are now dispersed, as your present atoms will be again, if you have the good fortune to live a few more years on this oxygen-rich planetary home." [more inside]
As the sea level rises and falls, how does that impact air pressure on Mount Everest? [more inside]
It's my understanding that the atmosphere at the Dead Sea has a higher concentration of oxygen than the sea level norm because of the extremely low elevation (roughly a quarter mile below sea level). My question is: what does it feel like to breathe this air? Is it refreshing? Does it feel thicker than air at sea level? Are there any objective medical findings associated with long-term exposure to oxygen at this concentration? Many thanks in advance.
I just saw Gravity this weekend... [more inside]
My 72 year old dad just was prescribed oxygen. He has portable units and then an electric machine for home use. He is supposed to fly from Dallas to Phoenix to visit me for Thanksgiving. I saw the Southwest regulations for his portable, but should I rent him a home machine or can he check his? Are they heavy? Are they expensive to rent?
Please recommend devices/tools/strategies to help my mom—who has mild dementia—remember not to remove the oxygen she is now required to wear 24/7 for COPD. Longer story inside... [more inside]
If I was in a life threatening crisis, how much time would the oxygen in a soda bottle buy me. [more inside]
Our baby is nearly coming home from the NICU, and the doctors have told us more than likely he will have to come home with an oxygen tank. We already bought a pram/stroller for him before we knew about this, now we aren't sure if we can fit the oxygen tank with the pram/stroller we have. I think its going to be a class D oxygen tank. Do we need a new pram or can we attach the tank somehow? [more inside]
How does the oxygen consumption of a candle compare to that of a person? [more inside]
I was just forwarded an email from a family member that eating raw foods high in oxygen can somehow help your blood oxygen levels. This sounds like complete crap to me. I was taught that oxygen gets into our bodies via the lungs. Is there the remotest possibility that oxygen in food gets into the bloodstream? In some significant amount that the body would notice? Any biochemists out there?
What happened to my face when I deepthroated my guy? (so very NSFW) [more inside]
I'm suffocating at work - is there a way to add oxygen into my office? [more inside]
Does compressed oxygen burn? Or do only objects IN compressed oxygen burn? Please settle this dinnertime discussion...The hubs and the daughter's boyfriend need to be told which one of them is right. Thanks!
Could a person survive for 1.5 hours in a casket, buried ~0.5-1m in desert sand? [more inside]
I'm trying to remember a science-fiction (?) short story that I read about 10-15 years ago. Basically, a bunch of prominent citizens of Earth (including Miss Universe) are summoned to Mars to be harangued by a sarcastic alien who tells them they're all doomed. [more inside]
"Silicon based life" is a perennial sci-fi trope - I guess because silicon and carbon share similar-ish valency properties. Has anyone actually tried to flesh out what a silicon chemistry complex enough to support protein analogues would look like? Or more broadly, has anyone proposed schemata for complex, self-replicating chemistries that differ substantially from those we know?
How far apart are the edges of an oxgyen molecule? How long does it take for a photon to travel that far? Expressing that photon travel time as cycles-per-second, what's pitch is it, and how many octaves away from middle C is it?
What is the hospital doing with a truck of "oxygen refrigerated liquid"? [more inside]
How can I fix a latency problem with a Oxygen8 v2 midi controller keyboard inputting into Sibelius 4? [more inside]
All the big organisms on the planet need a healthy supply or oxygen, yet there are a myriad organisms at the other end of the scale that either ignore oxygen or are actively averse to it. How come none of our large scale creatures have come from this anaerobic stock? [more inside]
Why are there no species that implement both halves of the photosynthesis/respiration cycle? [more inside]
Where can I find a used/rebuilt Airsep Freestyle portable oxygen concentrator on the cheap? [more inside]
Oxygen. In a can. At a convenience store. Would you try it? Why or why not? Is it safe, does it do any real good? Bonus points: Would it help migraine headaches?
Do we lose weight just by breathing? [more inside]
Pulse-Ox monitors (the little dealies that fit over your finger and measure oxygen saturation in the blood). Need to buy one for an asthmatic person. What are reputable brand names, places to order, etc? I'm in Canada, so shipping availability to Canada is essential (if ordered online), or local resources in Toronto.
I want a cheap 49 or 61 key USB MIDI keyboard for under $300. M-Audio Oxygen or E-mu Xboard? [more inside]
Not to start a fight but I am curious about this one...If the entire atmosphere is 100% and nitrogen is 89% and the inert gases are 0.9% and the rest is the O2 we breathe and more and more CO2 is being made [carbon burning made that is] from that O2 and not going back out of the system as released O2 will we see a drop in the amount of O2 we have to breathe? Does the actual % of the various gases get checked on by anyone? And would we see it first decline at higher altitudes or in the deaths of animals who need more O2 for their specific needs..........which ones are the mine canaries here?
I'm working to transfer a person on oxygen from San Diego to Oregon. It's a long trip and this person is mostly wheelchair bound. Overexertion causes breathlessness and anxiety. We are trying to effect this ourselves and the oxygen is proving the most problematic. At 12 liter flow, getting enough oxygen is a major technical issue if moving by vehicle. We're talking a 3 day trip with a stop halfway in Watsonville for a day. [more inside]
Given an airtight room with bright enough lights to fuel photosynthesis, how many plants would it take to provide an average person, at rest, with sufficient oxygen (assuming it is possible at all). [more inside]
I drove for about nine months on a bad oxygen sensor. Will my car suffer any long-term ill effects? [more inside]