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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
The Greek scientist Aristarchus was the first person to suggest what?
He first suggested that the Earth (and the other planets that were then known) rotated around the Sun instead of the other way around.
What does Dimitri Mendeleev get credit for creating?
He is credited as being the creator of the first version of the periodic table of elements. Using the table, he predicted the properties of elements yet to be discovered.
What you want to become in future and why?
i want to become a scientist and why i want to do this because i have a dream that i want build in the future and show to the other people . i have dream that i won't give up and i am following on my dream and i am studying hard that i can get something from the book and understand other thing that i am follow my step and important is the aim and i am aim for excellence and merit too.
No. E = mc2 is not the same as E = (mc)2 which is what the question suggests.
Also, if you know E, why do you need to square anything to "get" E?
Many countries in the New World and elsewhere celebrate the anniversary of Christopher Columbus's arrival in the Americas, which occurred on October 12, 1492 in the Julian calendar and October 21, 1492 in the modern Gregorian calendar, as an official holiday. The day is celebrated as Columbus Day in the United States, as Día de la Raza (Day of the Race) in many countries in Latin America, as Día de las Culturas(Day of the Cultures) in Costa Rica, as Discovery Day in The Bahamas, as Día de la Hispanidad (Spanish Day) and National Day in Spain, and as Día de la Resistencia Indígena (Day of Indigenous Resistance) in Venezuela. These holidays have been celebrated unofficially since the late 18th century, and officially in various countries since the early 20th century.
Columbus Day became an official state holiday in Colorado in 1905. It became a federal holiday in 1970. People have ritually remembered Columbus beginning at least in the Colonial period. In 1792, New York City and other eastern U.S. cities celebrated the 300th anniversary of his landing in the New World. In 1892, President Benjamin Harrison called upon the people of the United States to celebrate Columbus Day on the 400th anniversary of the event. During the 400 year anniversary in 1892, teachers, preachers, poets and politicians used Columbus Day rituals to teach ideals of patriotism. These patriotic rituals were framed around themes such as support for war, citizenship boundaries, the importance of obedience to the nation, and celebrating social change as progress.
Catholic immigration in the mid-nineteenth century induced discrimination from anti-immigrant activists such as the Ku Klux Klan. Like many other struggling immigrant communities, Catholics developed organizations to fight discrimination and provide insurance for the struggling immigrants. The organization, the Knights of Columbus, chose Columbus as the masthead to symbolize their rights to citizenship: one of their own, a fellow Catholic, had discovered America.
Some Italian-Americans observe Columbus Day as a celebration of their heritage, the first occasion being in New York City on October 12, 1866. Columbus Day was first popularized as a holiday in the United States through the lobbying of Angelo Noce, a first generation Italian, in Denver. The first official non-centennial Columbus Day was decreed by Colorado governor Jesse F. McDonald in 1905 and made state law in 1907.
Since 1971, the holiday has been commemorated in the U.S. on the second Monday in October, the same day as Thanksgiving in neighboring Canada. It is generally observed today by banks, the bond market, the U.S. Postal Service and other federal agencies, most state government offices, and some school districts; however, most businesses and stock exchanges remain open.
What is an experimental test done more than once?
To ensure that the results are valid. That's the whole point of a science test. The test must be able to be repeated and have the same result to start being considered valid.
Who did Guglielmo Marconi work with?
His brother Alphonso. He had his brother help him when he was working on sending signals all around the house.
What mistake did grant make at Shiloh?
General US Grant was taken by surprise at the Battle of Shiloh. Even with the surprise, the outcome of the battle was a Union victory.
What do scientist do with other scientist after they complete their investigations?
They communicate!
Michiko Mitsui works at the Department of Bioproduction Science Faculty of Horticulture Chiba University Yayoi-cho 1-33, Inage-ku Chiba 263-8522 Japan She is a co-author of the "Transient Assay for In Vivo Splicing in TobaccoLeaf Cells by Particle Bombardment" (http://pubs.nrc-cnrc.gc.ca/ispmb/ispmb21/r03-004.pdf) She is also ranked in the Rolex Women's World Golf Rankings (http://www.lpga.com/content/RolexRankings12-4-06.pdf)
What year did tesla invent the microwave?
He didn't. Percy Spencer invented the Microwave oven. James Clerk Maxwell was a mathematican and physicist and 'discovered' Microwaves in 1864.
1894, Indian radio pioneer Jagdish Chandra Bose will demonstrate radio control of a bell using millimeter wavelengths. So some people point to this as the inventor of them - from a human controlled sense - as he did extensive research into microwaves.
Albert W. Hull will discover and make use of dynatrons, vacuum tubes and Magnetrons in 1916-1920 which will be used to create Radar (which Tesla also -- did not invent). So a lot of people credit him with inventing Microwaves also. The word didnt exist until 1946.
This is more of a political/social issue than one of science. Though no one can speak for the general public to say why these individuals are not familiar with Tesla, one obvious reason for this phenomenon is that public schools teach about Franklin and Edison, but they make no mention of Tesla.
The reason may be Tesla's bad business sense. Tesla got little money or recognition for his many patents, and this may have also contributed to Edison's domination of the market in spite of his inferior technology. As in many historical cases, fame has come from commercial promotion of an individual.
What was the purpose of Louis Pasteur's experiments?
He was known for his discoveries of the principles of vaccination, microbial fermentation and pasteurization. He was successful in the end but although Pasteur made groundbreaking experiments, his reputation became associated with various controversies. Historical reassessment of his notebook revealed that he practiced deception to overcome his rivals. If you are referring to experiments in vaccinations, his purpose was to control various breaks up of diseases.
What are factors which helped early humans transition from nomadic life to a life of settlement?
nomadic people became more dependent on agriculture in some sittuations in other they found a food source that did not move as much usually in climates that didn't have an extreme winter
How do scientist detect heat waves?
Consider a blind person, he cannot see sun but he can tell if he is standing in sun or shade, how? Because he can feel infrared waves heating up his/her skin. Similarly there are certain substances that are sensitive to certain kind of waves, there can be an arrangement to detect these like a circuit to detect radio waves and so on.
