What made many scientists think the continents could not have changed position?
Many scientists believed that the continents were fixed in place because they observed that the coastlines of Africa and South America fit together like puzzle pieces, suggesting they were once connected. Additionally, the theory of continental drift was initially met with skepticism because it challenged the prevailing belief in the permanence of the Earth's features.
How did Robert Hooke advance microscopy?
Robert Hooke advanced microscopy by developing a compound microscope with high magnification and resolution, allowing him to observe and document microorganisms and structures at a cellular level. Additionally, his detailed observations of cork cells, published in his book "Micrographia," helped pave the way for the field of cell biology.
What is the contribution of scientists in fighting AIDS and cancer?
Scientists have made significant contributions in the fight against AIDS and cancer through research and development of treatments like antiretroviral therapy for HIV/AIDS and targeted therapies for various forms of cancer. Their work has led to improved detection methods, better understanding of the diseases, and the development of vaccines and novel treatments that have helped to prolong and improve the quality of life for many patients. Scientists continue to collaborate globally to find better ways to prevent, diagnose, and treat these diseases.
Who named alpha beta gamma rays?
they are just a b c, its the begining of the Greek alphabet, so it was something to do with the Greeks.
Ernest Rutherford arbitrarily named them after the first 3 letters of the Greek alphabet (actually a b g, not a b c, the Greeks had no letter for c). This practice of using Greek letters in mathematics, science, and engineering to identify things is common and in no way indicates any association with Greeks either ancient or modern. Mathematicians also frequently like to use Hebrew letters too.
When did Robert Hooke discover the cork cell?
Robert Hooke discovered the cork cell in 1665 when he examined a thin slice of cork under a primitive microscope he had made. He observed a series of empty box-like structures which he termed "cells" because they reminded him of the cells in a monastery. This discovery is considered one of the first observations of cells in biological specimens.
What kind of education did Alexander Fleming have?
Fleming was born on 6 August 1881 at Lochfield, a farm near Darvel in Ayrshire, Scotland. He was the third of the four children of Hugh Fleming (1816-1888) from his second marriage to Grace Stirling Morton (1848-1928), the daughter of a neighbouring farmer. Hugh Fleming had four surviving children from his first marriage. He was 59 at the time of his second marriage, and died when Alexander (known as Alec) was seven.
Fleming went to Loudoun Moor School and Darvel School, and earned a two-year scholarship to Kilmarnock Academy before moving to London where he attended the Royal Polytechnic Institution.[4] After working in a shipping office for four years, the twenty-year-old Fleming inherited some money from an uncle, John Fleming. His elder brother, Tom, was already a physician and suggested to his younger sibling that he follow the same career, and so in 1903, the younger Alexander enrolled at St Mary's Hospital Medical School in Paddington. He qualified MBBS from the school with distinction in 1906.
By chance, however, he had been a member of the rifle club (he had been an active member of the Volunteer Force since 1900). The captain of the club, wishing to retain Fleming in the team suggested that he join the research department at St Mary's, where he became assistant bacteriologist to Sir Almroth Wright, a pioneer in vaccine therapy and immunology. He gained a BSc with Gold Medal in 1908, and became a lecturer at St Mary's until 1914. On 23 December 1915, Fleming married a trained nurse, Sarah Marion McElroy of Killala, County Mayo, Ireland.
Fleming served throughout World War I as a captain in the Royal Army Medical Corps, and was Mentioned in Dispatches. He and many of his colleagues worked in battlefield hospitals at the Western Front in France. In 1918 he returned to St Mary's Hospital, where he was elected Professor of Bacteriology of the University of London in 1928.
Will scientists one day be able to grow whole organs?
This is a complicated subject that doesn't have a specific answer.
Generally, organs grow larger as we develop into adulthood. Some organs, like the liver, regenerate, even when damaged. Others, like the brain, do not develop new cells. However this does not mean that the brain does not 'grow' in other ways.
I'm sorry if this seems vague, but it is difficult to define 'grow' in this context. Obviously, if all of our organs continued to get bigger with age then old people would be huge!
On a side note, there is a common misconception that your eyes do not grow. Actually, your eyes grow by 50% from childhood into adulthood. The confusion arises because the eyes of a baby are proportionally larger to its head than those of an adult.
How many stages do scientists hypothesis there are to pangaea?
Scientists hypothesize that there are two main stages to the formation of Pangaea: the assembly stage, during which the continents were moving closer together, and the breakup stage, when Pangaea began to split into separate continents.
What is the name of the scientist that studies caves?
A scientist who studies caves is known as a speleologist or a cave scientist. They specialize in exploring and researching caves, which involves studying the geology, biology, and ecology of cave systems.
What is the unit scientists use when measuring force?
The SI unit of force is the 'newton'.
1 Newton = 1 kilogram-meter per second2
A strain gauge is a common measuring device and is highly portable, which is a good thing when you wish to measure the pulling force of a harbour tug, the lifting capacity of a crane, or the mass of a truck on the highway.
Why do scientists have crazy hair?
The stereotype of scientists having crazy hair likely comes from depictions in popular culture rather than reality. Many scientists have normal hairstyles just like anyone else. The focus of scientists is on their research and work, not their appearance.
Do scientists make a lot of money?
Yes, good scientist who come up with many inventions that help the world will and/or may be rich
Why can scientists not accurately predict where an earthquake will occur?
Earthquakes are caused by complex interactions between tectonic plates beneath Earth's surface, making it difficult to accurately predict when and where they will occur. The sheer number of variables involved, such as the type of fault, stress accumulation, and fault slip rates, make it challenging to make precise predictions. Scientists continue to research and develop methods to improve earthquake forecasting, but the inherent uncertainty in these natural processes limits the ability to pinpoint exact locations and times of future earthquakes.
Scientists use structural similarities, such as homologous structures and similar biochemical pathways, to determine evolutionary relationships. These similarities suggest a common ancestry and can help scientists infer how different species are related to each other. By comparing the presence and arrangement of these structures among different species, scientists can construct evolutionary trees to understand the history of life on Earth.
What are scientists that study living things and their environments?
Scientists that study living things and their environments are called biologists or ecologists. Biologists study life and living organisms, while ecologists focus on the relationships between living organisms and their physical surroundings.
Why would a scientist think that mold can be a good thing?
Scientists tend to question all kinds of things that they see around them -- even things that wouldn't seem to be worth noticing to the unscientific mind.
Scottish bacteriologist Alexander Fleming didn't always clean up after himself in his laboratory; often he left used culture dishes lying around. On September 15, 1928, Fleming noticed a bacteria-killing mold growing in one of the discarded dishes, and saw that the bacteria he was experimenting with refused to grow around the mold. A year later, he wrote about his findings, calling the mold penicillin.
Two chemists, Howard Florey and Ernst Chain, continued Fleming's work and showed that a refined form of the penicillin was successful in treating infected mice. By 1942, the drug had been tested on humans and the next year, it was already in use in the military, for treatment of soldiers with syphilis. Fleming, Florey and Chain shared 1945's Nobel Prize for Physiology or Medicine for their work in the development of penicillin.
Which kind of scientist studies all life forms?
A biologist studies all life forms, including animals, plants, and microorganisms. They focus on understanding the structure, function, behavior, and evolution of living organisms.
What are the 3 examples about Robert Koch's hypothesis on disease?
Scientists of Hellenistic times believed the Earth was the center of the universe and that celestial bodies moved around it in perfect circular motion. In Columbus's time, scientists began to challenge this geocentric view, with Copernicus proposing a heliocentric model where the Earth orbits the Sun. This shift in thinking laid the foundation for the scientific revolution that followed.
Three different ways scientists collect data?
Scientists often collect data through experiments, which involve controlled manipulation of variables. They also use observational studies to gather data by watching and recording natural phenomena. Surveys and questionnaires are another common method for collecting data by asking participants a series of questions.
What is the remains of humans?
As humans, our remains typically include bones, teeth, and sometimes hair or nails that are left behind after death. These remains can provide valuable information to archaeologists and anthropologists about our past lifestyles, diets, and health.
What kind of scientist studies dead people?
A forensic anthropologist studies dead people to identify human remains and determine the cause of death by examining skeletal remains.
Scientists call this the principle of form follows function. This concept highlights the idea that the structure of an organism is closely related to its function or purpose in its environment. It can be observed across various biological systems and organisms.
Which scientist studies behavior and properties of cells?
im not quite sure but i think its cytologist