The impact rate on 1958 Alpha for 153 events was Af for particles of mass greater than Af ( Dubin, 1960 ) ; ;

Alpha particles have a typical kinetic energy of 5 MeV ( that is, ≈ 0. 13 % of their total energy, i. e. 110 TJ / kg ) and a speed of 15, 000 km / s.

Alpha rays ( alpha particles ) and beta rays ( beta particles ) were differentiated by Ernest Rutherford in 1899 through simple experimentation in 1899, but these proved not to be electromagnetic radiation, but rather charged particulate radiation.

Alpha particles could pass through the thin glass wall but were contained within the surrounding glass envelope.

Alpha particles ( α ) are stopped by a sheet of paper while beta particles ( β ) are stopped by an aluminium plate.

Alpha particles, beta particles, cosmic rays, gamma rays, and X-ray radiation all carry energy high enough to ionize atoms.

Alpha particles are the same as a helium-4 nucleus ( two protons and two neutrons ) and travel at speeds in excess of 5 % of the speed of light, but they interact with matter very heavily, and thus at their usual velocities only penetrate a few centimeters of air, or a few millimeters of low density material ( such as the thin mica material which is specially placed in some Geiger counter tubes to allow alpha particles in ).

Alpha rays ( alpha particles ) and beta rays ( beta particles ) were differentiated by Ernest Rutherford through simple experimentation in 1899.

Alpha particles are also attenuated by the window.

** Alpha particles ( helium nuclei ) are the least penetrating.

Alpha radiation, as opposed to beta and gamma, is used for two additional reasons: Alpha particles have high ionization, so sufficient air particles will be ionized for the current to exist, and they have low penetrative power, meaning they will be stopped by the plastic of the smoke detector or the air.

An Alpha Particle X-Ray Spectrometer is a device that analyses the chemical element composition of a sample from the scattered alpha particles, and fluorescent X-rays after the sample is irradiated with alpha particles and X-rays from radioactive sources.

Alpha particles, protons, and X-rays are emitted during the radioactive decay of unstable atoms.

Alpha particles, produced by the decay of radon and polonium, leave tracks of charge on the silicon wafers when they impact the silicon.

* One recent hypothesis suggests that the lights are formed by a cluster of macroscopic Coulomb crystals in a plasma produced by the ionization of air and dust by Alpha particles during radon decay in the dusty atmosphere.

The first jet aircraft to enter service in October 1980 were six Alpha Jet CI light attack and advanced training aircraft ; six more were ordered, but were subsequently cancelled.

The primary Alpha instruction set architects were Richard L. Sites and Richard T. Witek.

The Alpha chips showed that manual circuit design applied to a simpler, cleaner architecture allowed for much higher operating frequencies than those that were possible with the more automated design systems.

Originally, the Alpha processors were designated the DECchip 21x64 series, with " DECchip " replaced in the mid-1990s with " Alpha ".

Internally, Alpha processors were also identified by EV numbers, EV officially standing for " Extended VAX " but having an alternative humorous meaning of " Electric Vlasic ", giving homage to the Electric Pickle experiment at Western Research Lab.

The first few generations of the Alpha chips were some of the most innovative of their time.

To maintain a level of compatibility with VAX, the 32-bit architecture the Alpha succeeded, two VAX data types were included:

While not recording, he frequently hung out and jammed with members of New Jersey – based country rockers Quacky Duck and His Barnyard Friends ( whose members included Tony Bennett's sons, Danny and Dae Bennett as well as future Dylan sideman and member of the Alpha Band, multi-instrumentalist David Mansfield ) and the proto-punk Jonathan Richman & the Modern Lovers, who were being managed by Kaufman.

In the days of the First Hebitian Civilization, the Cardassians collected works of art from all over the Alpha Quadrant and the planet boasted a vast wealth of art and culture ; the people were said to have elaborate burial vaults with unimaginable treasures.

Vehicle and robot rules were included in the " Alpha Dawn " basic set.

Two second-magnitude stars, Alpha Pavonis and Epsilon Carinae, were assigned the proper names Peacock and Avior respectively in 1937 by Her Majesty's Nautical Almanac Office during the creation of The Air Almanac, a navigational almanac for the Royal Air Force.

Upper Iowa University participates in the North Central Association ( NCA ) Academic Quality Improvement Program ( AQIP ), has a UIU chapter of the Alpha Chi National College Honor Society, and 165 student athletes were honored in 2010 for academic excellence.

By 1995, the dominant franchises were the Mortal Kombat series in America and Virtua Fighter series in Japan, with Street Fighter Alpha: Warriors ' Dreams unable to match the popularity of Street Fighter II.

Two melodies from Albedo 0. 39, " Alpha " and " Pulstar ", and also one track from L ' Apocalypse des animaux, " Création du Monde ", were also used in Cosmos.

These versions were released for Alpha AXP platforms.

Next door were his uncle Amos and aunt Alpha Boynton.

The families were very close as Amos was James ' father's half brother, and Alpha was his mother's sister.

Alpha and beta in turn came from the first two letters of the Phoenician alphabet, and originally meant ox and house respectively.

Alpha ( uppercase Α, lowercase α ; Álpha ) is the first letter of the Greek alphabet.

Alpha, both as a symbol and term, is used to refer to or describe a variety of things, including the first or most significant occurrence of something.

The New Testament has God declaring himself to be the " Alpha and Omega, the beginning and the end, the first and the last.

In addition to Alpha Centauri ( the 3rd brightest star in the sky ), a second first magnitude star, Beta Centauri, is part of Centaurus.

The first version, the Alpha 21064 or EV4, was the first CMOS microprocessor whose operating frequency rivalled higher-powered ECL minicomputers and mainframes.

The Tarantula research project, which most likely would have been called EV9, would have been the first Alpha processor to feature a vector unit.

* In 1921, members of the Alpha Phi Alpha fraternity ( the first African-American intercollegiate fraternity ) designated Frederick Douglass as an honorary member.

Given Pauling's recent success in discovering the Alpha helix, they feared that Pauling might also be the first to determine the structure of DNA.

* 1908 – The Alpha Kappa Alpha Sorority becomes the first Greek-letter organization founded and established by African American college women.

This melding of scientific and social speculation is clearly present in the novel Voyage from Yesteryear ( strongly influenced by Eric Frank Russell's famous story " And Then There Were None ") about a high-tech anarchist society in the Alpha Centauri system, a starship sent from Earth by a dictatorial government, and the events following their first contact.

As of version 9. 0 ( starting with the first test release after Alpha. 09 ), C-Kermit has an Open Source license, the Revised 3-Clause BSD License.

In 1992, Alpha Oumar Konaré won Mali's first democratic, multi-party presidential election, before being re-elected for a second term in 1997, which was the last allowed under the constitution.

This was encouraged by the support of the first two versions of Microsoft's Windows NT for Alpha, MIPS and PowerPC-and to a lesser extent the Clipper architecture and SPARC.

At its introduction, the 68000 was first used in high-priced systems, including multiuser microcomputers like the WICAT 150, early Alpha Microsystems computers, Sage II / IV, Tandy TRS-80 Model 16, and Fortune 32: 16 ; single-user workstations such as Hewlett-Packard's HP 9000 Series 200 systems, the first Apollo / Domain systems, Sun Microsystems ' Sun-1, and the Corvus Concept ; and graphics terminals like Digital Equipment Corporation's VAXstation 100 and Silicon Graphics ' IRIS 1000 and 1200.

* 1825 – At Union College in Schenectady, New York a group of college students form Kappa Alpha Society, the first college social fraternity.

" The first of these was The New Mutants, soon followed by Alpha Flight, X-Factor, Excalibur, and a solo Wolverine title.

* January 27 – The first college sorority, Kappa Alpha Theta, is established at DePauw University.