The common cold is an infection of the upper respiratory tract which can be caused by many different viruses. The most commonly implicated is a rhinovirus (30–80%), a type of picornavirus with 99 known serotypes. Other commonly implicated ...
Israel (/ ˈ ɪ z r i ə l, ˈ ɪ z r eɪ ə l /; Hebrew: י ש ר א ל , romanized: Yīsrāʾēl; Arabic: إ س ر ائ يل , romanized: ʾIsrāʾīl), officially known as the State of Israel (Hebrew: מ ד ינ ת י ש ר א ל , Medinat Yisra'el), is a country in Western ...
Spain is a secular parliamentary democracy and a constitutional monarchy, with King Felipe VI as head of state. It is a highly developed country and a high income country, with the world's fourteenth-largest economy by nominal GDP and the ...
- Ancient Monuments
- Modern Examples
- See Also
The Mesopotamians built the earliest pyramidal structures, called ziggurats. In ancient times, these were brightly painted in gold/bronze. Since they were constructed of sun-dried mud-brick, little remains of them. Ziggurats were built by the Sumerians, Babylonians, Elamites, Akkadians, and Assyrians for local religions. Each ziggurat was part of a temple complex which included other buildings. The precursors of the ziggurat were raised platforms that date from the Ubaid period during the fou...
The most famous pyramids are the Egyptian — huge structures built of brick or stone, some of which are among the world's largest constructions. They are shaped as a reference to the rays of the sun. Most pyramids had a polished, highly reflective white limestone surface, to give them a shining appearance when viewed from a distance. The capstone was usually made of hard stone – granite or basalt – and could be plated with gold, silver, or electrum and would also be highly reflective. The anci...
While pyramids are associated with Egypt, the nation of Sudan has 220 extant pyramids, the most numerous in the world.Nubian pyramids were constructed (roughly 240 of them) at three sites in Sudan to serve as tombs for the kings and queens of Napata and Meroë. The pyramids of Kush, also known as Nubian Pyramids, have different characteristics than the pyramids of Egypt. The Nubian pyramids were constructed at a steeper angle than Egyptian ones. Pyramids were still being built in Sudan as late...The Louvre Pyramid in Paris, France, in the court of the Louvre Museum, is a 20.6 metre (about 70 foot) glass structure which acts as an entrance to the museum. It was designed by the American arch...The Tama-Revillage was an Egyptian-themed set of buildings and monuments established near Eatonton, Georgia by Nuwaubians in 1993 that was mostly demolished after being sold under government forfei...The Luxor Hotel in Las Vegas, United States, is a 30-story true pyramid with light beaming from the top.The 32-story Pyramid Arena in Memphis, Tennessee (a city named after the ancient Egyptian capital whose name itself was derived from the name of one of its pyramids). Built in 1991, it was the home...Chogha Zanbil is an ancient Elamite complex in the Khuzestan province of Iran.Nubian pyramids at Archaeological Sites of the Island of MeroeShaohao Tomb, Qufu, ChinaEl Castillo at Chichen Itza
Russia (Russian: Россия, Rossiya, Russian pronunciation: [rɐˈsʲijə]), or the Russian Federation, [b] is a country spanning Eastern Europe and Northern Asia.It is the largest country in the world by area, covering over 17 million square ...
Turkey is a regional power, and a newly industrialized and developing country, with a geopolitically strategic location. Its economy, which is classified among the emerging and growth-leading economies, is the twentieth-largest in the world by ...
- Data Channels and Connections
- External Links
NEPTUNE is an acronym for North-East Pacific Time-series Undersea Networked Experiments. The North-East Pacific is home to the Juan de Fuca plate—smallest of Earth's 12 tectonic plates. Its small size and close proximity to the coast gives NEPTUNE Canada a unique opportunity to observe tectonic processes. NEPTUNE Canada is built to provide continuous observations for 25 years. The time-series data gathered will allow scientists to study long-term changes over the life of the project. Instruments comprising the undersea observatory will operate at depths ranging from 17 to 2,660 m. Hundreds of instruments have been connected to the Internet by way of shielded cables carrying both power and fibre-optic communication lines. A database will archive and provide networkedaccess to all archived data. Taking advantage of this platform, scientists collaborating with NEPTUNE are expected to conduct thousands of unique experiments over the life of the project.In 2007, NEPTUNE Canada laid approximately 800 km of power transmission and fibre optic communication cables over the northern part of the Juan de Fuca tectonic plate off the west coast of Vancouve...The NEPTUNE project was selected as one of the five most significant science projects of the year in 2008 from The Economist.In June 2008, the NEPTUNE project received and successfully tested the world's first "Internet-operated deep sea crawler", created by a team of ocean scientists at Bremen's Jacobs University, will...Late September 2008 NEPTUNE Canada's first fully instrumented instrument platform was deployed by ROPOS from the Canadian Coast Guard Ship John P Tully in Saanich Inlet and connected to the VENUS S...
In NEPTUNE Canada network traffic, there are 4 different type of network channels that are defined in the network description file based on the data provided. The first channel provides 10 Gbit/s data rate between UVIC (University of Victoria) DMAS (Data Management and Archive Station) and shore station in Port Alberni. This channel has the largest volume in the system, and is located in between the edge of the network of the system and the main receiver UVIC DMAS. The shore station is linked to the first branching unit as followed with 5 other branching units that are also linked to other branching units. This solid connection spur cable|forms a ring-shaped SONET network that has two cables in order to control the network traffic in two directions. A 2 by 2 Gbit/s data channel is implemented on the spur cable. Furthermore, each branching unit is connected to a regional node station. And the connection between node stations and branching units provide 1 Gbit/s data rate using a fibe...Barnes, Chris; M. Best; F. Johnson; P. Phibbs; B. Pirenne (October 2008). "Transforming the ocean sciences through cabled observatories" (PDF). Marine Technology: 30–36. Archived from the original...Barnes, Chris; M. Best; A. Zielinski (July 2008). "The NEPTUNE Canada Regional Cabled Ocean Observatory". Sea Technology.Carr, Geoffrey (15 November 2007). "Visiting Neptune's kingdom". The Economist.Calamai, Peter (Winter 2009). "Transforming the ocean sciences through cabled observatories". Canadian Technology & Business.
- Public Image and Controversies
- Personal Life
- See Also
- External Links
Dream created his YouTube account on February 8, 2014 and started to upload content regularly in July 2019. The first video on Dream's account that is still accessible involves him playing the game Minecraft poorly on purpose in order to "trigger" viewers.As of January 2021, the video has amassed 10 million views. In July 2019, Dream figured out the seed of a Minecraft world YouTuber PewDiePie was playing on using reverse engineering techniques that Dream learned from online forums. In Novemb...
Along with YouTubers Sapnap and GeorgeNotFound, Dream is a member of the "Dream Team". The group frequently collaborate to create new content. In May 2020, the "Dream Team" created the Dream SMP, a private Survival Multiplayer (SMP) Minecraft server. Over time, other prominent Minecraft content creators outside the "Dream Team" have been invited to the server, including TommyInnit and Wilbur Soot. The Dream SMP has been noted for its roleplay, with major events being loosely scripted in advan...
Throughout 2020, Dream was a prominent participant in Minecraft Championship, a monthly Minecraft competition organized by Noxcrew. In 2020, Dream came first in the 8th and 11th Minecraft Championships. In September 2020, during the 10th Minecraft Championship, he played for charity, raising around $3,400.
Opinion polls have shown that Dream is both one of the most liked and disliked YouTubers on the platform, with a 2021 SurveyMonkeypoll showing that 59.7% of respondents have a favorable view of him compared to 22.1% who had an unfavorable view. On January 1, 2021, Dream was doxed by fans who revealed the location of his house.On January 7, Dream addressed the doxing and denied accusations made against him by his former girlfriend. On March 25, 2021, a clip resurfaced online from a now private video showing a Minecraft account with the username "Dream" saying the n-word. The clip garnered attention on Twitter and Reddit, with Dream tweeting in response that the person in the video is not him. On June 30, 2021, Dream announced that he had donated $140,000 ($90,000 from fan contributions and $50,000 from the Dream Team) to The Trevor Project, an LGBTyouth charity.
Having not revealed his face, Dream's real life identity and many aspects of his personal life are unknown. As of 2021, Dream resides in Orlando, Florida. Dream has spoken publicly about his diagnosis with ADHD.Dream's channel on YouTubeDreamSMP on Twitch
Transcriptions Standard Mandarin Hanyu Pinyin zhùyīn fúhào Bopomofo ㄓㄨˋ ㄧㄣ ㄈㄨˊ ㄏㄠˋ Gwoyeu Romatzyh Juh'in fwuhaw Wade–Giles Chu 4-yin 1 fu 2-hao 4 Tongyong Pinyin Jhùyin fúhào MPS2 Jùyīn fúhàu IPA [ʈʂu .i n fu .xa u] Yue: Cantonese Yale
- Structure and Implementation
- Virtual CPUs
- External Links
Early computers such as the ENIAC had to be physically rewired to perform different tasks, which caused these machines to be called "fixed-program computers". The "central processing unit" term has been in use since as early as 1955. Since the term "CPU" is generally defined as a device for software (computer program) execution, the earliest devices that could rightly be called CPUs came with the advent of the stored-program computer. The idea of a stored-program computer had been already present in the design of J. Presper Eckert and John William Mauchly's ENIAC, but was initially omitted so that it could be finished sooner. On June 30, 1945, before ENIAC was made, mathematician John von Neumann distributed the paper entitled First Draft of a Report on the EDVAC. It was the outline of a stored-program computer that would eventually be completed in August 1949. EDVAC was designed to perform a certain number of instructions (or operations) of various types. Significantly, the program...
The fundamental operation of most CPUs, regardless of the physical form they take, is to execute a sequence of stored instructions that is called a program. The instructions to be executed are kept in some kind of computer memory. Nearly all CPUs follow the fetch, decode and execute steps in their operation, which are collectively known as the instruction cycle. After the execution of an instruction, the entire process repeats, with the next instruction cycle normally fetching the next-in-sequence instruction because of the incremented value in the program counter. If a jump instruction was executed, the program counter will be modified to contain the address of the instruction that was jumped to and program execution continues normally. In more complex CPUs, multiple instructions can be fetched, decoded and executed simultaneously. This section describes what is generally referred to as the "classic RISC pipeline", which is quite common among the simple CPUs used in many electronic...
Hardwired into a CPU's circuitry is a set of basic operations it can perform, called an instruction set. Such operations may involve, for example, adding or subtracting two numbers, comparing two numbers, or jumping to a different part of a program. Each basic operation is represented by a particular combination of bits, known as the machine language opcode; while executing instructions in a machine language program, the CPU decides which operation to perform by "decoding" the opcode. A complete machine language instruction consists of an opcode and, in many cases, additional bits that specify arguments for the operation (for example, the numbers to be summed in the case of an addition operation). Going up the complexity scale, a machine language program is a collection of machine language instructions that the CPU executes. The actual mathematical operation for each instruction is performed by a combinational logic circuit within the CPU's processor known as the arithmetic logic un...
Cloud computing can involve subdividing CPU operation into virtual central processing units (vCPUs). A host is the virtual equivalent of a physical machine, on which a virtual system is operating. When there are several physical machines operating in tandem and managed as a whole, the grouped computing and memory resources form a cluster. In some systems, it is possible to dynamically add and remove from a cluster. Resources available at a host and cluster level can be partitioned out into resources pools with fine granularity.
The performance or speed of a processor depends on, among many other factors, the clock rate (generally given in multiples of hertz) and the instructions per clock (IPC), which together are the factors for the instructions per second (IPS) that the CPU can perform.Many reported IPS values have represented "peak" execution rates on artificial instruction sequences with few branches, whereas realistic workloads consist of a mix of instructions and applications, some of which take longer to execute than others. The performance of the memory hierarchy also greatly affects processor performance, an issue barely considered in MIPS calculations. Because of these problems, various standardized tests, often called "benchmarks" for this purpose—such as SPECint—have been developed to attempt to measure the real effective performance in commonly used applications. Processing performance of computers is increased by using multi-core processors, which essentially is plugging two or more indiv...How Microprocessors Work at HowStuffWorks.25 Microchips that shook the world – an article by the Institute of Electrical and Electronics Engineers.