*etiolation*, and results in a lack of chlorophyll, the chemical that makes most plants green. White asparagus is supposedly more tender and more mild in flavour compared to green asparagus. There is also a purple variety of asparagus. Originally from Italy, most purple asparagus is a result of the selective breeding resulting in many hardy hybrids. Rutgers, the State University of New Jersey is a producer of many asparagus hybrids such as 'Jersey Supreme, 'Jersey Knight', and 'Jersey Giant'.

## Monday, June 13, 2011

### White and Green Asparagus - The Difference is Dark.

White and green asparagus are the same. White asparagus is grown completely in the dark, a process known as

## Wednesday, June 8, 2011

### The parity of 0

**Zero is an even number.**In other words, its

*parity*—the quality of an integer being even or odd—is even. Coincidentally an even parity is denoted

*parity 0*. Therefore it is true that 0 has parity 0.

Zero fits the definition of an even number: An even number is an integer of the form

*n*= 2*k*where*k*is an integer. It also exhibits all properties shared by all even numbers, including but not limited to:- being divisible by 2
- being surrounded on both sides by odd integers
- able to be split into two equal groups

Zero also fits the rules for sums and products of even numbers, such as

*even − even = even*, so any alternate definition of "even number" would still need to include zero.More: Wikipedia

## Friday, June 3, 2011

### Système international d'unités

The International System of Units

*,*normally abbreviated SI (from the French:*Système international d'unités*), or more colloquially called "the metric system" has been globally adopted with three main exceptions:**Liberia, Myanmar (Burma) and the United States**.*Everyone else has caught on...*

## Thursday, June 2, 2011

### Is π any good beyond 39 decimal places?

**It has been said that π truncated to 39 decimal places is sufficient to estimate the circumference of any circle that fits in the observable universe with precision comparable to the radius of a hydrogen atom.**

Back of the envelope time:

The observabe universe has a diameter of about 93 billion light years or 8.79873*10^26m. The circumference of the observable universe (assuming that it is spherical in shape) is therefore

**π***8.79873*10^26m or about 2.76420*10^27m. An error in**π**of +/-1.0*10^-39 would result in an error in the circumference of something on the order of +/-1.0*10^-12m (very roughly). The average orbital radius of H is about 5.29177*10^-11m.**So, Is π any good beyond 39 decimal places (even though it has an infinite decimal expansion)?****Answer: Probably not other than for theoretical and computational interests.**
Subscribe to:
Posts (Atom)