X-ray

X-radiation (composed of X-rays) is a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×10¹⁶ Hz to 3×10¹⁹ Hz) and energies in the range 100 eV to 100 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to with terms meaning Röntgen radiation, after Wilhelm Röntgen, who is usually credited as its discoverer, and who had named it X-radiation to signify an unknown type of radiation. Spelling of X-ray(s) in the English language includes the variants x-ray(s), xray(s), and X ray(s).

X-rays with photon energies above 5–10 keV (below 0.2–0.1 nm wavelength) are called hard X-rays, while those with lower energy are called soft X-rays. Due to their penetrating ability, hard X-rays are widely used to image the inside of objects, e.g., in medical radiography and airport security. As a result, the term X-ray is metonymically used to refer to a radiographic image produced using this method, in addition to the method itself. Since the wavelengths of hard X-rays are similar to the size of atoms they are also useful for determining crystal structures by X-ray crystallography. By contrast, soft X-rays are easily absorbed in air; the attenuation length of 600 eV (~2 nm) X-rays in water is less than 1 micrometer.

X-Ray (book)

X-Ray (1994) was Ray Davies' first major attempt to write prose outside his musical career as founding member of the British rock band the Kinks.Robert Polito calls it an "experimental non-fiction" and describes Davies as "a prose stylist of Nabokovian ambition."

X-Ray

The book, subtitled as an "unauthorized autobiography," employs a nameless 19-year-old first-person narrator hired by 'the Corporation' to seek out and interview a slightly demented geriatric version of Davies himself ten to twenty years after the time of the novel's publication. Thus, while technically an autobiography, the work has an unreliable narrator. In many ways a work of fiction, it reveals many factual details concerning the Kinks and other important figures of the swinging sixties, but tends to do so in a literary fashion. By employing this narrative device, Davies was able to shed some light on the life of the Kinks without resorting to the usual pedestrian 'he said/she said' mechanics often associated with memoirs of celebrities.

Instruments (application)

Instruments (formerly Xray) is an application performance analyzer and visualizer, integrated in Xcode 3.0 and later versions of Xcode. It is a developer tool included in Apple Mac OS X v10.5 and later versions of Mac OS X, built on top of the DTrace tracing framework from OpenSolaris and ported to Mac OS X.

Instruments shows a time line displaying any event occurring in the application, such as CPU activity variation, memory allocation, and network and file activity, together with graphs and statistics. Group of events are monitored via customizable "instruments", which have the ability to record user generated events and replay (emulate) them exactly as many times as needed, so a developer can see the effect of code changes without actually doing the repetitive work. The Instrument Builder feature allows the creation of custom analysis instruments.

Built-in instruments can track

Cannabis (drug)

Cannabis, also known as marijuana and by numerous other names, is a preparation of the Cannabis plant intended for use as a psychoactive drug or medicine. The main psychoactive part of cannabis is tetrahydrocannabinol (THC); it is one of 483 known compounds in the plant, including at least 84 other cannabinoids, such as cannabidiol (CBD), cannabinol (CBN), and tetrahydrocannabivarin (THCV).

Cannabis is often consumed for its mental and physical effects, such as heightened mood, relaxation, and an increase in appetite. Possible side effects include a decrease in short-term memory, dry mouth, impaired motor skills, red eyes, and feelings of paranoia or anxiety. Onset of effects is within minutes when smoked and about 30 minutes when eaten. They last for between two and six hours.

Cannabis is mostly used recreationally or as a medicinal drug. It may also be used as part of religious or spiritual rites. In 2013, between 128 and 232 million people used cannabis (2.7% to 4.9% of the global population between the ages of 15 and 65). In 2015, almost half of the people in the United States have tried marijuana, 12% have used it in the past year, and 7.3% have used it in the past month.

Marijuana (word)

"Marijuana" or "marihuana", etc., is a name for the cannabis plant and a drug preparation made from it. The form "marihuana" is first attested in Mexican Spanish; it then spread to other varieties of Spanish and to English, French, and other languages.

Etymology

The term, originally spelled variously as "marihuana", "mariguana", etc., originated in Mexican Spanish. The ultimate derivation is unknown.

According to the Oxford English Dictionary, it may come from the Nahuatl mallihuan, meaning "prisoner". Author Martin Booth notes that this etymology was popularized by Harry J. Anslinger in the 1930s, during his campaigns against the drug. However, linguist Jason D. Haugen finds no semantic basis for a connection to mallihuan, suggesting that the phonetic similarity may be "a case of accidental homophony". Cannabis is not known to have been present in the Americas, before Spanish contact, making an indigenous word an unlikely source.

Other suggestions trace the possible origins of the word to Chinese ma ren hua "hemp seed flower", possibly itself originating as a loan from an earlier semitic root *mrj "hemp". The Semitic root is also found in the Spanish word mejorana and in English marjoram (oregano), which could be related to the word marihuana, which is also known in Mexico as "Chinese oregano".

Marijuana (EP)

Marijuana EP is an EP released by Brujeria. The song "Marijuana" is the death metal parody of the pop hit "Macarena". Two vinyl versions exist - green and black. Early vinyl copies came with matches.

Track listing