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History of Science
Find questions about the origin and important events that led to the development of the different Sciences.
9,329 Questions
What are some of the forces that act upon object in motion?
What kind of object in what kind of motion? The question is too vague to answer, and the forces depend on the properties of the object and its environment anyway. For example, there might ... or might not ... be significant electromagnetic and/or gravitational forces acting on the object (technically, any real object in the real universe WILL have electromagnetic and gravitational forces acting on it, but they may be insignificant in some cases).
Who used a microscope to study plant parts?
Robert Hooke is credited with being one of the first scientists to use a microscope to study plant parts. In his book "Micrographia" published in 1665, Hooke described and illustrated plant cells for the first time, giving the first detailed account of the cellular structure of plants.
different bonds and forces enable molecules to be attracted to each other
they include
ionic bond
covalent bond
hydrogen bond
vander waal's forces
non covalent bonds
Hall discovered how to extract aluminum by?
Hall discovered how to extract aluminum by using the electrolysis process in 1886. This process involves passing an electric current through a molten mixture of aluminum oxide and cryolite, resulting in the separation of aluminum from oxygen. This method revolutionized the production of aluminum and is still used today.
What are rift zones and how do they form?
Rift zones are a large area of the earth which plates of the earth's crust are moving away from each other, which then forms an extensive system of fractures and faults.
How do rift zones form when two tectonic plates pull away from each other.
What form of energy allows us to see a in a reflection in a mirror?
The same energy that lets you see in the first place: light.
How did climate change affect early fourteenth-century Europe?
The lives of all medieval Europeans were tied to the fortunes of agriculture. In the twelfth and thirteenth centuries a gradually warming climate lengthened the growing season in northern Europe, making it possible to grow more grain even on less arable land. This trend was reversed at the end of the thirteenth century and in the fourteenth century the European mainland became progressively colder. This caused changes in rainfall patterns, shortened the growing seasons and lessened the productivity of cereal agriculture. Europe's vulnerability to climatic change came in 1315 during the great famine in northern Europe.
What steps are in pasteurizing?
Pasteurizing involves heating a liquid to a specific temperature for a set amount of time to kill harmful microorganisms while preserving the quality of the product. The steps include heating the liquid, holding it at the required temperature, and then rapidly cooling it to prevent recontamination.
Did Hans Christian Oersted discovered that electricity and magnets produce each other?
Yes, Hans Christian Oersted discovered that an electric current can generate a magnetic field, demonstrating the relationship between electricity and magnetism. This discovery laid the foundation for the development of electromagnetism as a branch of physics.
Why would it not to be a good idea to test a product on one person?
Testing a product on only one person may not yield accurate results due to individual differences in factors such as genetics, age, and health conditions. To ensure the product's safety and effectiveness across a broader population, it is essential to conduct tests on a diverse group of individuals to account for variability in responses.
Which was isolated by madame Curie radium or rhenium?
Radium
1. Marie Curie, Pierre Curie and Gustave Bemont discovered radium in 1898.
2. Maria and Pierre Curie isolated radium chloride in Paris in 1902.
3. Marie Curie, Pierre Curie and Andre Louis Debierne prepared radium as a pure metal in 1910.
Can the surface tension of water be made stronger?
Yes, the surface tension of water can be increased by adding certain substances such as surfactants or ions. These substances can alter the surface properties of water molecules, making the surface tension stronger.
Are all places along the equator very warm inculding Minnesota Iowa Illinois Michigan?
No, not all places along the equator are very warm. Minnesota, Iowa, Illinois, and Michigan are located far from the equator and experience four distinct seasons with cold winters due to their northern latitudes. These states have a continental climate influenced by their distance from the equator, not warmth associated with the equator.
Jabir ibn Hayyan is knows as the founder of?
Jabir ibn Hayyan is known as the founder of early alchemy, a forerunner of modern chemistry. He made significant contributions to the field, including developing new experimental techniques and experimenting with various chemical processes. His work laid the foundation for the eventual development of modern chemistry.
Why can the growth of plants be considered a cycle?
Why can the growth of plants be considered a cycle. I need the answer please give me the answer why can the growth of plants be considered a cycle because I am doing a project on plants tomorrow and if you don,t give me the answer my science teacher will say why didn,t you find the answer for why can the growth of plants be considerded a cycle please give me the answer for it please I don.t want to get a 0 so will you please give me the answer because if you don,t I am going to get a big F.
What cells do the cell theory apply to?
The cell theory applies to all living cells, including those found in plants, animals, fungi, and single-celled organisms. It states that all living organisms are composed of one or more cells, cells are the basic unit of structure and function in living organisms, and all cells come from pre-existing cells.
What is a molten material ejected from a volcano?
Molten rock (magma) that spews from a volcano is called lava, When it cools, the lava forms igneous rocks.
Who developed the electron-cloud model?
The electron cloud theory was developed in the late 1930s and early 1940s.
When did Schwann observe many different animal cells and came to a conclusion?
Theodor Schwann made his observations on animal cells and formulated the cell theory in the 1830s. He concluded that all animals are made up of cells, laying the foundation for the modern understanding of cell biology.
How did louis pasteur influence medicine?
Louis Pasteur found that vaccinations could prevent diseases. He found the vaccine for anthrax and for rabies, and the cure for childbed fever. His rabies vaccine methods were used for close to one hundred years, before another method was found in 1971. Pasteur is most remembered for his sterilization methods known as Pasteurisation, the process of heating foodstuffs in order to kill bacteria.
Why was Johannes Kepler important?
He published accurate data on the positions of stars and planets which immensely helped navigators. He made various contributions to mathematics, including faster methods of calculation. He also improved optics. However, his main contribution with the greatest impact was Kepler's Laws of Planetary Motion. These laws provided the groundwork for many great scientific discoveries, including Sir Isaac's Newton's work on universal gravitation.
The most common form of matter in the universe is what?
The most common found matter in the universe is plasma. Plasma, an iodized gas found mainly in stars and space, covers more than 85% of the universe.
How do minerals containing uranium darken photographic film?
Uranium minerals emit radiation that causes silver halide crystals in photographic film to undergo a process known as fogging. This fogging results in darkening of the film, affecting the quality of images produced.
Who first discovered that salt increases the density in water?
Archimedes, a Greek mathematician and scientist, is credited with discovering that salt increases the density of water. He made this observation while trying to solve a problem for the King of Syracuse involving the purity of a gold crown.
