04 NOV 2018 by ideonexus
Degenerate Strategies and Cheating
Why isn't using a degenerate strategy considered cheating? Degenerate strategies take advantage of weaknesses in the rules of a game, but do not actually violate the rules. What kind of player would play in this way? The answer is both a dedicated player, who is overzealously seeking the perfect strategy, and an unsportsmanlike player, who has found a hole in the rules to exploit, even though he understands that he is not playing the game the way it was intended. These two kinds of players ca... 1 
notes
notesIs the same true of memorizing algorithms to solve the rubiks cube?
27 JUL 2018 by ideonexus
The Information Age has Increased Abstract Intelligence
Most dramatically, an increase in one kind of abstract intelligence is visible all over the world: mastery of digital technology. Cyberspace is the ultimate abstract realm, in which goals are achieved not by pushing matter around in space but by manipulating intangible symbols and patterns. When people were first confronted with digital interfaces in the 1970s, like videocassette recorders and ticket machines in new subway systems, they were baffled. It was a running joke of the 1980s that mo...Folksonomies: intelligence iq
Folksonomies: intelligence iq
1 notes
notes30 MAY 2016 by ideonexus
Co-veillance
At first sight, things seem quite similar in City Number Two. Again, there are ubiquitous cameras, perched on every vantage point. Only here we soon find a crucial difference. The devices do not report to the secret police. Rather, each and every citizen of this metropolis can lift his or her wristwatch/TV and call up images from any camera in town.
Here, a late-evening stroller checks to make sure no one lurks beyond the corner she is about to turn.
Over there, a tardy young man dials to s...Folksonomies: surveillance panopticon
Folksonomies: surveillance panopticon
1 notes
notes21 MAR 2015 by ideonexus
Running In Elderly Promotes Walking-Economy of Youth
Older runners had a 7–10% better walking economy than older walkers over the range of speeds tested (p = .016) and had walking economy similar to young sedentary adults over a similar range of speeds (p = .237). We found no substantial biomechanical differences between older walkers and runners. In contrast to older runners, older walkers had similar walking economy as older sedentary adults (p = .461) and ~26% worse walking economy than young adults (p<.0001).Folksonomies: longevity
Folksonomies: longevity
1 04 MAR 2015 by ideonexus
An Algorithm for Predicting Longevity
For the test, participants exercised on a treadmill at increasing speed and incline. While they were exercising, the researches measured peak heart rate (%MPHR) and their ability to withstand physical exertion. On that latter point, they measured metabolic equivalents, or METs, which gauges how much energy the body expends during exercise. The more intense the exercise, the higher the METs (e.g. slow walking = ~2 METs, whereas running = ~8 METs).
[...]
FIT Treadmill Score = %MPHR 12(M...You can get your MPHR for your age here. I found a chart of METS here for various exercises.
| Activity | METS | Activity | METS |
| Aerobic Dancing | 6.0 | Running 12 min/mile | 8.5 |
| Backpacking | 7.0 | Racquetball | 8.0 |
| Badminton | 7.0 | Rugby | 8.3 |
| Basketball | 6.0 | Skating ice/roller | 7.0 |
| Bicycling - 24mph | 5.0 | Skiing cross country | 8.0 |
| Calisthenics | 4.5 | Soccer | 8.0 |
| Golf | 5.0 | Softball | 5.0 |
| Gymnastics | 5.5 | Swimming | 6.0 |
| Handball | 8.0 | Tennis | 7.0 |
| Hockey | 8.0 | Volleyball | 4.0 |
| Horse riding | 3.5 | Walking | 3.5 |
| Running 8 min/mile | 12.5 | Weight lifting | 4.5 |
| Stage | Minutes | % grade | km/h | MPH | METS |
|---|---|---|---|---|---|
| 1 | 3 | 10 | 2.7 | 1.7 | 5 |
| 2 | 3 | 12 | 4.0 | 2.5 | 7 |
| 3 | 3 | 14 | 5.4 | 3.4 | 10 |
| 4 | 3 | 16 | 6.7 | 4.2 | 13 |
| 5 | 3 | 18 | 8.0 | 5.0 | 15 |
| 6 | 3 | 20 | 8.8 | 5.5 | 18 |
| 7 | 3 | 22 | 9.6 | 6.0 | 20 |
Total Durations = 21 minutes
So, if I'm understanding this correctly. If I reach a 160 heart rate out of 179.0 MPHR predicted for my 41 years of age while running 12 minute miles worth 8.5 METS. My score would be:
83.7 12(8.5) - 4(41) = 21.7
The same heart rate for my age running 8 minute miles:
83.7 12(8.5) - 4(41) = 69.7
01 DEC 2014 by ideonexus
Schrodinger's Cat as a Lock for a Box
Quantum mechanics claims that there is no definite cat in the box, only a ghost, a superposition of a live cat and a dead cat. That is, until we open it and look. A measurement will collapse the system into one state or the other. So goes Schrödinger’s thought experiment.
It is completely wrong, of course. A cat is a macroscopic system, and there is no mysterious intervention by a magical observer needed to make it live or die: just its interaction with the rest of the Universe, a phenomenon...Folksonomies: quantum physics
Folksonomies: quantum physics
1 notes
notes27 SEP 2013 by ideonexus
?? as a Term of Encouragement
The Chinese characters say ?? (Jia1 you2).? is composed of ? (power) and ? (mouth). It means 'to add'? is made out of ? (?, water) and ?(from/ due). It means oil.??to add? ??oil?= add oil or make an extra effort
?? is a terribly common phrase in day to day life. If you want to encourage someone to carry on great work, or in a sports competition, you say ??! A bit like 'go on!' in English.
Of course another literal meaning of ?? is to refuel.ShaoLan explains how the symbols break down.
30 JUL 2013 by ideonexus
Odd Sympathy
Laid up in bed during a brief illness and idly watching two clocks mounted in one case, Huygens noticed something strange: No matter how the pendulums started out, eventually they always ended up swinging in exactly opposite directions. Huygens wondered whether this odd sympathy might solve the longitude problem. Perhaps, he thought, two such clocks could regulate each other. If one got dirty, for instance, and started running slow, the influence of the other clock would lessen this effect. I... 1 notes
notesMathematician Christiaan Huygens, inventor of the pendulum clock found that two clocks on the same wall will invariably come into counter-synchronization with one another. This is because of thermodynamics and their connection via the support beam in the wall.
28 MAY 2013 by ideonexus
The Brain Dies in Stages
“The body tries to stay alive. It’s not so… It’s natural. Maybe you’ll see it now. First the human brain dies, then the animal brain, then the lizard brain. Like your Rm, only backward. The lizard brain tries to its very last bit of energy to keep things going. I’ve seen it. Some kind of desire. It’s a real force. Life wants to live. But eventually a link breaks. The energy stops getting to where it needs to be. The last ATP gets used. Then we die. Our bodies return to earth, go back to being...From higher functions to lower functions, de-evolving.
12 JUN 2012 by ideonexus
Ink VS Gunpowder
Printer's ink has been running a race against gunpowder these many, many years. Ink is handicapped, in a way, because you can blow up a man with gunpowder in half a second, while it may take twenty years to blow him up with a book. But the gunpowder destroys itself along with its victim, while a book can keep on exploding for centuries. Folksonomies: books
Folksonomies: books
Gunpowder can only explode once, books explode for centuries.
