Tachy Psyche Effect

From wikipedia:
Tachypsychia is a neurological condition that distorts the perception of time, usually induced by physical exertion, drug use, or a traumatic event. It is sometimes referred to by martial arts instructors and self defense experts as the Tachy Psyche effect. For someone affected by tachypsychia, time perceived by the individual either lengthens, making events appear to slow down, or contracts, objects appearing as moving in a speeding blur. It is believed that tachypsychia is induced by a combination of high levels of dopamine and norepinephrine, usually during periods of great physical stress and/or in violent confrontation.

A somewhat contrasting experience is the feeling of time flying as you grow older. When we were younger, that history lecture seemed to take eternity. Every school year, the wait for summer, would seem more like 10 years. Is this because of some unknown emotional trauma we were experiencing? I dont know about you, but I was definitely not taking drugs as a kid, 
or going through any major physical stress or violent confrontations for that matter.

Does this ring a familiar bell? Ahh...Time dilation! As predicted by Lorentz transformation (warning: some math stuff) in Einstein's special relativity. When you are 5 years old an hour is a LONG time. A week is almost eternity. At 20 an hour doesn't seem as long as it used to. I'm now 26 and time is flying by. Years are clicking off the way weeks seemed to when I was 5-10..

It doesn't bode well as if you extrapolate this phenomenon out to the age of 70 then the last decade of your life will go by in what seems like a month.

I attribute this effect to the amount of time your brain has experienced. When you are 5 years old, an hour or a day is a much larger portion of the total time frame your brain has to relate to than when you're 20, 30, or 70.

at age 5, 1 year = 1/5 of your life
at age 15, 1 year = 1/15 of your life
at age 40, 1 year = 1/40 of your life
and in our heads we measure time relative to our lives. In relation to your brain's total time reference, an hour is much more significant at age 5.

Another theory thrown around is that the human perception of Time is a subjective experience. With training, one can either speed up or slow down how fast things seem to be going. What usually happens is that the boring minutes seem to drag, and the pleasurable moments pass too quickly. Certain methods in hypnosis have been employed to switch this around, so that boring hours can seem to pass in minutes, and the good times seem to last forever.

Now that explains why my time flies when I am on a date with someone special, but it crawls to a halt when I am waiting for the next one!

Long S

The history and etymology of the Integration symbol in Calculus. A funny anecdote from Shakespeare about the same.

Harvard Comma

An article on the Harvard Comma, its usage example and a funny joke related to it. Coming soon.

Epworth Sleepiness Scale

A scale used to evaluate sleep debt. Sleep debt is the cumulative effect of not getting enough sleep. A simple method of measuring your ESS score is presented below:

How likely are you to doze off or fall asleep in the following situations, in contrast to feeling just tired? This refers to your usual way of life in recent times. Even if you have not done some of these things recently try to work out how they would have affected you.

Use the following scale to choose the most appropriate number for each situation:
0 = no chance of dozing
1 = slight chance of dozing
2 = moderate chance of dozing
3 = high chance of dozing

• Sitting and reading
  
• Watching TV
  
• Sitting inactive in a public place (e.g a theater or a meeting)
  
• As a passenger in a car for an hour without a break
  
• Lying down to rest in the afternoon when circumstances permit
  
• Sitting and talking to someone
  
• Sitting quietly after a lunch without alcohol
  
• In a car, while stopped for a few minutes in traffic

To check your sleepiness score, total the points:

1 - 6: Congratulations, you are getting enough sleep!
7 - 8: Your score is average
9 and up: Seek the advice of a sleep specialist without delay

Scoville Scale

Scoville scale is used to measure the hotness or spiciness of a chilli pepper. The earlier method to calculate it was as follows: Start diluting the chilli extract with water. Let a panel of five judges taste it at regular intervals. The Scoville index is achieved when none of the judges can sense the hotness of the chilli anymore.

Naga Jolokia was tested hottest in the world at 1,040,000 SHU! Here is a comparative list of Scoville ratings to get some perspective on it.

South Asian origin of the name California

A theory that directly links the name California to a Vedic myth has been suggested. In Hindu mythology, the sage Kapila is said to have burnt King Sagar's 60,000 sons to the ground on being accused of abducting their horse. This incident is said to have taken place at "Kapilaaranya" - derived from Kapila Aranya or Kapila's Forest. The link between the Paatala-loka (literally underworld) which is where the horse allegedly ran off to and the situation of America on the earth directly opposite to India, or in other words "beneath" it, has been noted by proponents of this derivation of "California". The existence of an Ash Mountain Park in California and a Horse Island in Alaska seem to consolidate this possibility, although few authorities have voiced any opinions regarding the Kapilaaranya/California mystery.

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