Tag: speed
Speed of Machines
by crazyskills on Oct.10, 2009, under announcement, tech
It appears that the speed of computers is limited. Moore’s Law states that computer speeds could double every two years, by including more, smaller transistors on a chip.
Jaunty Jackalope
by crazyskills on Apr.25, 2009, under tech
GNU/Linux, Ubuntu flavor, Black Cat style - just keeps getting better! Major improvements in this release in terms of speed, from booting to firing up apps, to browsing the filesystem, internet. Very highly recommended. And props to the Ubuntu deveoper community of the world!
Did I mention fast?
My Brain Is Frozen
by crazyskills on Apr.24, 2009, under question
1440 / 360 = 4.
1440 minutes in a day
360° in a circle or around a sphere (globe)
4 6-hour segments in a day (or 2 12s)
or 1° of rotation every 4 minutes.
60 / 4 = 15.
15 / 4 = 3.75
In a full circle there are 360 degrees. Each degree is split up into 60 parts, each part being 1/60 of a degree. These parts are called minutes. Each minute is split up into 60 parts, each part being 1/60 of a minute. These parts are called seconds. Trigonometry [id.mind.net]
Minutes, and seconds, in time, in degrees, and in latitude / longitude. The Earth is divided equally into 360 degrees of longitude subdivided into minutes and seconds: there are 60 minutes (’) per degree, and 60 seconds (”) per minute. A degree of latitude is approximately 69 miles, and a minute of latitude is approximately 1.15 miles. A second of latitude is approximately 0.02 miles, or just over 100 feet. Geography [nationalatlas.gov]
Yes, there is a point to all of this.
The circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometers). Geography [about.com]
This means 69.170972 miles per degree, broken into 60 minutes broken into 60 seconds.
The numbers aren’t perfect but we are seeing roughly 24,901 miles around the earth, which spins 360° every 24 hours, or roughly 1000 miles per hour at 15° every hour. 60 / 15 = 4. so 4° every 15 minutes. 15 * 24 = 360. 15 / 4 = 3.75 so 3.75° every 4 minutes or 0.9375° per minute.
15 * 24 = 360 A second of latitude is about 100 feet
so a degree of latitude is 360,000 feet; a minute, 6,000; a second, 100ft.
QED
