After entering the Western Pacific, the environment rapidly became more favourable and Paka's strengthening quickened. It became a typhoon on December 10 and passed near Kwajalein with winds of 100 knots. It strengthened further, twice reaching Category 5 intensity. While close to maximum intensity, Paka passed close to Guam on December 17 and 18, causing "major damage". Afterwards, Paka encountered a hostile environment and had completely dissipated by the evening of December 21.
1987 Pacific hurricane season
The 1987 Pacific hurricane season officially started May 15, 1987 in the eastern Pacific, and June 1, 1987 in the central Pacific, and lasted until November 30, 1987. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean.
Despite there being twenty cyclones, there were very few notable storms this year. Only three storms came anywhere near to threatening land. Hurricane Eugene was the first Pacific hurricane to make landfall in Mexico in July since at least the 1949 season. Tropical Storm Pilar and Hurricane Norma also came close to land. The remnants of Hurricanes Ramon and Norma caused rain in the Continental United States. Elsewhere, Peke was a central north Pacific hurricane that crossed the dateline and became a typhoon.
1976 Pacific hurricane season
The 1976 Pacific hurricane season was an event in tropical cyclone formation. Hurricanes Kathleen, Liza, and Madeline are the most notable storms this year. Hurricane Kathleen caused death and destruction in California and Arizona because of flooding. Hurricane Liza was the deadliest storm of the season when it killed over 600 people in Mexico. Hurricane Madeline is notable for being the second-most intense Pacific hurricane at landfall.
Kathleen was a costly and damaging storm mainly in Nevada, California and Arizona. It also killed 7 people.
Liza was very deadly and the third deadliest ever behind Hurricane Paul and the Mexico hurricane.
Madeline became the third storm in the row to make landfall in Mexico. It was also the most intense.
Kronosaurus
Kronosaurus was a large pliosaur, one of the largest. It was one of the largest pliosaurs, and is named after the leader of the Greek Titans, Kronos. It lived in the Lower Cretaceous.
Body-length estimates, based on the 1959 Harvard reconstruction, had put the total length of "Kronosaurus" at 12.8 meters (42 feet). However, a recent study compared fossil specimens of "Kronosaurus" to other pliosaurs. The Harvard reconstruction may have included too many vertebrae, exaggerating its length. Its true length was probably only 9–10.9 meters (30–36 feet).
Riding
Riding has many meanings:
Fermat number
A Fermat number is a special positive number. Fermat numbers are named after Pierre de Fermat. The formula that generates them is
where "n" is a nonnegative integer. The first nine Fermat numbers are :
As of 2007, only the first 12 Fermat numbers have been completely factored. (written as a product of prime numbers) These factorizations can be found at Prime Factors of Fermat Numbers.
If 2 + 1 is prime, and "n" > 0, it can be shown that "n" must be a power of two. Every prime of the form 2 + 1 is a Fermat number, and such primes are called Fermat primes. The only known Fermat primes are "F"...,"F".
Today, Fermat numbers can be used to generate random numbers, between 0 and some value N, which is a power of 2.
Fermat, when he was studying these numbers, conjectured that all Fermat numbers were prime. This was proven to be wrong by Leonhard Euler, who factorised formula_2 in 1732.
Blowup
Blowup is a 1966 British drama movie set in London. It was nominated for two Academy Award and won a Grand Prix award. It is directed by Italian movie director Michelangelo Antonioni and written by Antonioni, Toni Guerra and Edward Bond. It starred David Hemmings and Vanessa Redgrave. Carlo Ponti produced the movie. This was Antonioni's first English language movie.
Improper rotation
An improper rotation can be understood as an inversion followed by a proper rotation.
Equivalently it is the combination of a rotation and an inversion in a point on the axis. Therefore it is also called a rotoinversion or rotary inversion.
A simple example of an improper rotation in 3D (but not in 2D) is a coordinate inversion: x goes to −x, y to −y and z to −z. Under this transformation, a and b go to −a and −b (by the definition of a vector), but p clearly does not change. (It follows that any improper rotation multiplies p by −1 compared to the rotation's effect on a true vector.)
Inverse
Inverse or Inversion could mean:
Endorphins
Endorphins are natural chemicals in the body that fight pain. Endorphins are released when a person gets hurt, but also during exercise, laughter or sex. In addition to blocking pain, endorphins can make people happy.
Endorphins resemble drugs like morphine, so when scientists first discovered these chemicals in the 1970s, they called them "endogenous morphine". Since then, scientists have identified and named five different types of endorphins, all of which occur naturally in the body. Endorphins can also be found in most animals.
They are produced by the central nervous system and the pituitary gland. Their name has two parts: "endo-" and "-orphin"; these are short forms of the words "endogenous" and "morphine". They mean "a morphine-like substance from within the body". Endorphins are three compounds which bind to receptors. The main function of endorphins is to inhibit the communication of pain signals. They may also produce a feeling of euphoria very similar to that produced by other opioids.
Four types of endorphins are created in the human body. They are named "alpha" (α), "beta" (β), "gamma" (γ) and "sigma" (σ) endorphins. The four types have different numbers and types of amino acids in their molecules; they have between 16 and 31 amino acids in each molecule.
Beta-endorphins (β-endorphins) are the most powerful endorphins in the body. They are usually in the hypothalamus and pituitary gland. More endorphins are released in the pituitary gland during times of pain or stress. Exercise increases the endorphin release too. For the same reason, exercise results in a better mood.
Met-enkephalin and leu-enkephalin are in the brain stem and spinal cord; they are the pain killers of the spinal cord. Both of them have 16- 31 amino acids in their structure; the first four are similar, but the last one is different.
All of the endorphins bind to the opioid receptors in the brain. Many of the analgesic (pain killer) drugs have a similar action in the brain. The main difference between the natural endorphins and the analgesic drugs is that natural endorphins are cleared from the blood very quickly. Endorphins are also involved in the release of sex hormones in the pituitary gland. Also, scientists think that acupuncture results in the release of more endorphins. Endorphins may have a role in obesity, diabetes and psychiatric diseases too.
The term 'endorphin rush' is sometimes used in normal speech to refer to a feeling of wellness caused by exercise, danger or stress. However, it is not a medical term, and it is not proven that higher endorphin production after exercise really has a role in the wellness feeling.
Another term which is commonly used is 'runner's high'. It refers to the feeling being "high" (full of energy and wellness) after exercise. It is commonly said that the "high" is a result of the release of bigger amounts of endorphins in the body during the exercise. However, some scientists think this feeling is caused by the challenge, and is not related to endorphin release.