09 NOV 2015 by ideonexus
Physiological Decline in the Body When You Stop Exercising
...regular endurance exercise leads to four major consequences:
Increased ability of the heart to eject blood
increased ability of the blood vessels to send blood to where blood is needed
Increased number of capillaries (the vessels that deliver oxygen and ‘food’ to the muscles)
increased size and the number of mitochondria (the “power plants” of the cells).
All these changes lead to the more efficient use of oxygen, as well as nutrients.
[...]
Pino considers a person who can run... 1 
notes
notes29 DEC 2013 by ideonexus
Reality Teaches Us
At birth one may stand at the cross-roads for only a few lal. The adjustments are peremptory. The human mechanism must adjust itself to the new world. If it does,—then life. Sometimes it is necessary to "slap" it. That is "science" giving a first lesson in adjustment. An adequate supply of oxygen for the cells of the body is the first problem man faces when he comes into this world. Every pink pill is not a piece of candy. Science goes to the rescue and re-establishes adjustments. Man tires... 1 notes
notesWe start out trying to figure out the world, and science teaches us the lessons, but when we overbelieve--go beyond empirical evidence--we "may spoil the garden."
23 JUN 2013 by ideonexus
An Elegant Complex Description of Fire
The atoms like each other to different degrees. Oxygen, for instance in the air, would like to be next to carbon, and if they get near to each other, they snap together. If they’re not too close though, they repel and they go apart, so they don’t know that they could snap together. It’s just as if you had a ball, it was trying to climb a hill and there was a hole it could go into, like a volcano hole, a deep one. It’s rolling along, it doesn’t go down in the deep hole, because if it...
1 From Richard Feynman, making the process of burning wood seem wondrous.
12 JUN 2012 by ideonexus
Candles and Animals Both Need Oxygen
If a small animal and a lighted candle be placed in a closed flask, so that no air can enter, in a short time the candle will go out, nor will the animal long survive. ... The animal is not suffocated by the smoke of the candle. ... The reason why the animal can live some time after the candle has gone out seems to be that the flame needs a continuous rapid and full supply of nitro-aereal particles. ... For animals, a less aereal spirit is sufficient. ... The movements of the lungs help not a...Folksonomies: physiology respiration
Folksonomies: physiology respiration
1 notes
notesQuoting John Mayow.
11 JUN 2012 by ideonexus
We Must Become Comfortable with Large Numbers
Borel makes the amusing supposition of a million monkeys allowed to play upon the keys of a million typewriters. What is the chance that this wanton activity should reproduce exactly all of the volumes which are contained in the library of the British Museum? It certainly is not a large chance, but it may be roughly calculated, and proves in fact to be considerably larger than the chance that a mixture of oxygen and nitrogen will separate into the two pure constituents. After we have learned ...
1 In order to understand why a million monkey on a million typewriters might produce a great work of art.
08 JUN 2012 by ideonexus
Science Depends on Revolutions Large and Small
Scientific development depends in part on a process of non-incremental or revolutionary change. Some revolutions are large, like those associated with the names of Copernicus, Newton, or Darwin, but most are much smaller, like the discovery of oxygen or the planet Uranus. The usual prelude to changes of this sort is, I believed, the awareness of anomaly, of an occurrence or set of occurrences that does not fit existing ways of ordering phenomena. The changes that result therefore require 'put... 1 notes
notesSmall ones, like the discovery of oxygen and Uranus, that requires thinking in a way to uncover anomalies.
08 JUN 2012 by ideonexus
Youth and Chemistry
It is only those who know a little of nature, who fancy they know much. I have heard a young man say, after hearing a few popular chemical lectures, and seeing a few bottle and squirt experiments: Oh, water—water is only oxygen and hydrogen!—as if he knew all about it. While the true chemist would smile sadly enough at the the youth's hasty conceit, and say in his heart: 'Well, he is a lucky fellow.' 1 notes
notesSample of how a little knowledge promotes unwarranted certainty.
30 JAN 2012 by ideonexus
The Illusion of Taste
When carbon (C), Oxygen (o) and hydrogen (H) atoms bond in a certain way to form sugar, the resulting compound has a sweet taste. The sweetness resides neither in the C, nor in the O, nor in the H; it resides in the pattern that emerges from their interaction. It is an emergent property. Moreover, strictly speaking, is not a property of the chemical bonds. It is a sensory experience that arises when the sugar molecules interact with the chemistry of our taste buds, which in turns causes a set... 1 notes
notesWhen we taste sweetness, our tongues are not responding to the C, O, or H, but to the molecule.
24 SEP 2011 by ideonexus
The Brain Consumes Lactose During Exercise
Scientists have discovered that lactose, a byproduct of intense muscular activities, can be used to fuel the brain with energy. When glucose, the natural fuel of the brain, is no longer present in sufficient quantities, the cell tissue can “switch” to alternative energy, to prevent any damage to the brain on account of the lack of energy.
[...]
Consequently, by consuming the lactose in the blood, the brain clears the way for glucose, the main powering substance in the body, to reach the...This frees up the body's glucose to fuel the muscles in times of high energy demands on the body (Note: This meme must be wrong in using the term "lactose," because that is a sugar that comes from milk. "Lactate" is a byproduct of muscles consuming glucose that fuels the brain while the muscles take energy-precedence).
06 SEP 2011 by ideonexus
1889 Prediction That Has Almost Come True
We may indeed live yet to see, or at least we may feel some confidence that those who come after us will see, such bodies as oxygen and hydrogen in the liquid, perhaps even in the solid state, and the question of their metallic or non-metallic nature thereby finally settled.Folksonomies: prescience predictions
Folksonomies: prescience predictions
1 notes
notesAndrews predicts our seeing hydrogen as a liquid; although, I do not know if we have seen it as a solid yet.
