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Scientists
This category is for questions about the people who apply the scientific method to solve problems, introduce new concepts, and strive to explain the natural world.
9,527 Questions
With what scientists proposed the meteorite impact hypothesis to explain the extinction of the?
Dinosaur?
yes
What changes happen at the time as a result of this scientist work?
what changes happened at the time as a result of this scientists work
Who is Schrodinger and Heisenberg?
Schrödinger and Heisenberg are known to be two of the important founders of quantum mechanics. They both invented a mathematical formalism for quantum mechanics. Schrodinger's formalism which was based on the wave equation was the most popular one. Heisenberg's formalism was based on the notion of quantum jumps (the innate "randomness" of sub-atomic physics the very reason that the famous "Schrodinger's cat" is not alive or dead...). Heisenberg's formalism was innovative but more difficult to handle.
The difference on the formalism reflects their different views on the interpretation of quantum mechanics; Schrondinger was more a realist and he was sharing Einstein view that randomness is not desirable in the description of sub-atomic physics. Heisenberg on the other hand was more a supporter of the Copenhagen Interpretation of quantum mechanics which interprets the sub-atomic randomness as an innate characteristic of the sub-atomic world and the very heart of quantum physics theory.
What are scientists are trying to determine about any observation he or she might make?
You have ricks!
What does an earth scientist study?
An Earth scientists can study a number of things. Volcanology, geology and environmental Biology are a few examples of Earth sciences.
The Geologic time scale is how they are sure of which is found in the world In Asia they find a red clay deposit under a iron ore deposit In Africa they find a iridium-rich deposit under a red clay deposit In Canada they find this sequence: iron ore, red clay, iridium-rich In Europe they find red clay, iridium-rich, marble, granite When they piece together all of these sequences from around the world until they find a specific pattern in this example: iron ore, red clay, iridium-rich, marble, granite. However sometimes erosion or a drought or some other freak of nature happens that slightly changes the pattern.
What are five facts about Guglielmo marconi?
His goal was to use radio waves to create a system of "wireless telegraphy". Also, he married a woman named Beatrice O'Brien and had 3 children with her, 1 boy and two girls. He divorced her later and that same year married Maria Bezzi-Scali and had 1 daughter with her named Elettra.
Did Robert Koch have children when he moved to lille?
Robert Koch may never have been to Lille ( I don't know for sure, but I have never seen that mentioned. He may have been mixed up with the other Father of Microbiology, Louis Pasteur.) Robert Koch had two children, though, Gertrud (in 1865) and, (unrecordedly) Ausma, who may have been conceived as a result of an affair or through his marriage with Hedwig Freiberg.
Where there is no vision their is no hope is a quote from what black American scientist?
George Washington Carver
What parts of the human nervous system are scientists able to replace as of today?
The nervous system of the body is currently not transplantable. Damaged nerves can be grafted in the hope that they will grow back together, but this is not 100% reliable and no section of the central nervous system can be replaced once lost.
What scientist used a compound microscope to study cork and dead cells of oak bark?
Robert Hooke. He looked through his microscope and thought the cork looked like little jail cells or rooms, so he called them "CELLS". This took place in 1665.
What did Oparin believe caused the early gases of Earth to combine?
he believed that there was a storm including lighting which split apart the gases and they combined to form new compounds. it also rained which added oxygen to the Earth so when the elements recombined they would have oxygen. theses new compounds were known as amino acids
Why did Ernest Rutherford experiment in the dark?
Ernest Rutherford was a British physicist who is most well-known for his study of radioactive materials. He would sit in the dark for long periods of time before his experiments, to ensure his eyes were sensitive enough, as he would then try to count flashes given off by the materials.
Sunil Ahuja is a professor of Medicine, Microbiology, Immunology and Biochemistry. He completed his education in India and Canada and is based at the SUNY Health Science Center at Brooklyn, NY.
Homeland of Anton van leeuwenhoek?
Antonie van Leeuwenhoek (October 24, 1632 -- August 26, 1723) was a Dutch businessman who devoted much of his life to developing the microscope and investigating microorganisms.
He was born in Delft, a city in the province of South Holland in the Netherlands. He also died in Delft. Except for the six years he spent in Amsterdam as an apprentice, he spent his entire life in Delft.
Why do scientists repeat experiments?
Scientists repeat experiments for reliability. The experiment must be repeated for the scientist to develop a theory. One experiment does not prove your hypothesis correct; therefore, it must be done a several times.
Which two types of cells do scientist think was the first to evolve?
Prokaryotic cells were the first to evolve and then later Eukariotic cells came along.
The term "Marconi antenna" usually refers to a two part antenna consisting of a vertical portion and a "reflective" or "ground" portion. When constructed properly, it is very similar to a vertically oriented dipole, in that one element is "up" and the other "down".
The reflective portion is not always a physical element, but often either natural earth ground (where the soil conductivity is sufficient) or ground "radials" - a set of wires along or just beneath the ground that act as the reflective portion.
A Marconi antenna is an omni-directional (same transmit/receive in all directions) antenna that has good long distance characteristics on HF (high frequency) and MW (medium wave, or AM) frequencies.
A Marconi is typically built with a 1/4 wavelength vertical element, and similar length radial(s). For example, the full wavelength for 7MHz is about 133ft. A 1/4 wavelength vertical element (and each radial) would therefore be about 33.5ft.
Most AM broadcast stations use some variation of a Marconi antenna. Since an AM station at 1050 on an AM dial is equal to 1.050MHz and therefore a wavelength of over 990ft, a 1/4 wavelength vertical element would be almost 223ft for that station!
The antenna was originally made using telescopic fiber glass tubes and then covered with a copper film to make them look electrically like a huge copper tube. The antenna was made by a company located in London called Bantex Antennas. This company shut down and the team of engineer was take over and built a new company called Renair Antennae Ltd, they carried manufacturing these antennas for some years.
These antennas were ordered from Marconi to be mount overseas mainly. They were real big monsters!
