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26-473: Minobu is in south-central Yamanashi Prefecture. The Fuji River passes through the town, which is dominated by the sacred Mount Minobu. It also shares Lake Motosu with neighbouring Fujikawaguchiko . Yamanashi Prefecture Shizuoka Prefecture The town has a climate characterized by hot and humid summers, and relatively mild winters ( Köppen climate classification Cfa ). The average annual temperature in Minobu

52-548: A more detailed treatment of this and the above frequency ranges, see Electromagnetic spectrum . Gravitational waves are also described in Hertz. Current observations are conducted in the 30–7000 Hz range by laser interferometers like LIGO , and the nanohertz (1–1000 nHz) range by pulsar timing arrays . Future space-based detectors are planned to fill in the gap, with LISA operating from 0.1–10 mHz (with some sensitivity from 10 μHz to 100 mHz), and DECIGO in

78-630: A population of 10,663 in the urban area. Minobu developed from the Kamakura period as a temple town outside the gates of the important Buddhist temple of Kuon-ji , one of the primary head temples of the Nichiren Shū . During the reform of the early Meiji period on April 1, 1889, Minamikoma District within Yamanashi Prefecture was created and organized into 22 villages. Minobu village was raised to town status on January 1, 1931. On February 11, 1955

104-562: A river in Japan is a stub . You can help Misplaced Pages by expanding it . This Shizuoka Prefecture location article is a stub . You can help Misplaced Pages by expanding it . Hertz The hertz (symbol: Hz ) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle ) per second . The hertz is an SI derived unit whose formal expression in terms of SI base units

130-540: Is 14.1 °C. The average annual rainfall is 1540 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.0 °C, and lowest in January, at around 2.6 °C. Per Japanese census data, the population of Minobu has declined substantially during the second half of the 20th century and in early 21st century; the town had a peak population of just under 40,000 and in 2020 recorded

156-423: Is s , meaning that one hertz is one per second or the reciprocal of one second . It is used only in the case of periodic events. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves . For high frequencies, the unit is commonly expressed in multiples : kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of

182-473: Is the photon's energy, ν is its frequency, and h is the Planck constant . The hertz is defined as one per second for periodic events. The International Committee for Weights and Measures defined the second as "the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium -133 atom" and then adds: "It follows that

208-452: Is usually measured in kilohertz (kHz), megahertz (MHz), or gigahertz (GHz). with the latter known as microwaves . Light is electromagnetic radiation that is even higher in frequency, and has frequencies in the range of tens of terahertz (THz, infrared ) to a few petahertz (PHz, ultraviolet ), with the visible spectrum being 400–790 THz. Electromagnetic radiation with frequencies in the low terahertz range (intermediate between those of

234-776: The Mogami River and the Kuma River , it is regarded as one of the three most rapid flows of Japan. The river arises from Mount Nokogiri in the Akaishi Mountains in northwest Yamanashi as the Kamanashi River ( 釜無川 , Kamanashi-gawa ) , and meets the Fuefuki River at the town of Ichikawamisato . There it changes its name to the Fuji River. It then flows around the west foot of Mount Fuji and into Suruga Bay at its mouth in

260-811: The Tokugawa shogunate of the Edo period , when extensive dikes were completed in 1674 after 50 years of construction, to divert the lower river away from populated areas, which were prone to flooding. Water transportation up the river from Suruga Bay to inland Kai Province prospered in the Edo period and early Meiji period , until the opening of the Tōkaidō Main Line , Chūō Main Line and Fuji Minobu Railway railways. Commercial river transport ceased in 1923. There are numerous dams for hydroelectric power generation and flood control along

286-446: The 0.1–10 Hz range. In computers, most central processing units (CPU) are labeled in terms of their clock rate expressed in megahertz ( MHz ) or gigahertz ( GHz ). This specification refers to the frequency of the CPU's master clock signal . This signal is nominally a square wave , which is an electrical voltage that switches between low and high logic levels at regular intervals. As

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312-468: The 1970s. In some usage, the "per second" was omitted, so that "megacycles" (Mc) was used as an abbreviation of "megacycles per second" (that is, megahertz (MHz)). Sound is a traveling longitudinal wave , which is an oscillation of pressure . Humans perceive the frequency of a sound as its pitch . Each musical note corresponds to a particular frequency. An infant's ear is able to perceive frequencies ranging from 20 Hz to 20 000  Hz ;

338-476: The average adult human can hear sounds between 20 Hz and 16 000  Hz . The range of ultrasound , infrasound and other physical vibrations such as molecular and atomic vibrations extends from a few femtohertz into the terahertz range and beyond. Electromagnetic radiation is often described by its frequency—the number of oscillations of the perpendicular electric and magnetic fields per second—expressed in hertz. Radio frequency radiation

364-657: The city of Fuji . The banks of the Fuji River was the location of the Battle of Fujikawa in 1180, one of the most important early battles of the Genpei War . The Sengoku period warlord Takeda Shingen built extensive dikes along the Kamanashi portion of the river, which allowed water to flood buffer zones to control damage. These dikes still exist, and are called the Shingen-zutsumi ( 信玄堤 ) . Flood control efforts continued under

390-440: The event being counted may be a complete cycle); 100 Hz means "one hundred periodic events occur per second", and so on. The unit may be applied to any periodic event—for example, a clock might be said to tick at 1 Hz , or a human heart might be said to beat at 1.2 Hz . The occurrence rate of aperiodic or stochastic events is expressed in reciprocal second or inverse second (1/s or s ) in general or, in

416-449: The hertz has become the primary unit of measurement accepted by the general populace to determine the performance of a CPU, many experts have criticized this approach, which they claim is an easily manipulable benchmark . Some processors use multiple clock cycles to perform a single operation, while others can perform multiple operations in a single cycle. For personal computers, CPU clock speeds have ranged from approximately 1 MHz in

442-413: The highest normally usable radio frequencies and long-wave infrared light) is often called terahertz radiation . Even higher frequencies exist, such as that of X-rays and gamma rays , which can be measured in exahertz (EHz). For historical reasons, the frequencies of light and higher frequency electromagnetic radiation are more commonly specified in terms of their wavelengths or photon energies : for

468-616: The hyperfine splitting in the ground state of the caesium 133 atom is exactly 9 192 631 770  hertz , ν hfs Cs = 9 192 631 770  Hz ." The dimension of the unit hertz is 1/time (T ). Expressed in base SI units, the unit is the reciprocal second (1/s). In English, "hertz" is also used as the plural form. As an SI unit, Hz can be prefixed ; commonly used multiples are kHz (kilohertz, 10  Hz ), MHz (megahertz, 10  Hz ), GHz (gigahertz, 10  Hz ) and THz (terahertz, 10  Hz ). One hertz (i.e. one per second) simply means "one periodic event occurs per second" (where

494-454: The late 1970s ( Atari , Commodore , Apple computers ) to up to 6 GHz in IBM Power microprocessors . Various computer buses , such as the front-side bus connecting the CPU and northbridge , also operate at various frequencies in the megahertz range. Higher frequencies than the International System of Units provides prefixes for are believed to occur naturally in the frequencies of

520-544: The rules for capitalisation of a common noun ; i.e., hertz becomes capitalised at the beginning of a sentence and in titles but is otherwise in lower case. The hertz is named after the German physicist Heinrich Hertz (1857–1894), who made important scientific contributions to the study of electromagnetism . The name was established by the International Electrotechnical Commission (IEC) in 1935. It

546-413: The specific case of radioactivity , in becquerels . Whereas 1 Hz (one per second) specifically refers to one cycle (or periodic event) per second, 1 Bq (also one per second) specifically refers to one radionuclide event per second on average. Even though frequency, angular velocity , angular frequency and radioactivity all have the dimension T , of these only frequency is expressed using

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572-520: The town expanded by annexing three neighboring villages. On September 13, 2004, Minobu absorbed the towns of Nakatomi , also from Minamikoma District, and Shimobe, from Nishiyatsushiro District . Fuji River The Fuji River ( 富士川 , Fuji-kawa or Fuji-gawa ) is a river in Yamanashi and Shizuoka Prefectures of central Japan. It is 128 kilometres (80 mi) long and has a watershed of 3,990 square kilometres (1,540 sq mi). With

598-480: The unit hertz. Thus a disc rotating at 60 revolutions per minute (rpm) is said to have an angular velocity of 2 π  rad/s and a frequency of rotation of 1 Hz . The correspondence between a frequency f with the unit hertz and an angular velocity ω with the unit radians per second is The hertz is named after Heinrich Hertz . As with every SI unit named for a person, its symbol starts with an upper case letter (Hz), but when written in full, it follows

624-403: The unit's most common uses are in the description of periodic waveforms and musical tones , particularly those used in radio - and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation of the energy of a photon , via the Planck relation E  =  hν , where E

650-583: The various tributaries in the upper reaches of the river. The Fuji River also marks the divide of Japan's electrical grid , with the utility frequency of 50  hertz to the east, and 60 hertz to the west. The view of the Tōkaidō Shinkansen train crossing the river against the background of Mount Fuji is a celebrated scene representative of Japan. 35°06′56″N 138°38′28″E  /  35.115437°N 138.641111°E  / 35.115437; 138.641111 (mouth) This article related to

676-482: Was adopted by the General Conference on Weights and Measures (CGPM) ( Conférence générale des poids et mesures ) in 1960, replacing the previous name for the unit, "cycles per second" (cps), along with its related multiples, primarily "kilocycles per second" (kc/s) and "megacycles per second" (Mc/s), and occasionally "kilomegacycles per second" (kMc/s). The term "cycles per second" was largely replaced by "hertz" by

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