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What extraction of salt from seawater?
Seawater is first filtrated and then refined by repeated processes of crystallization/dissolving/recrystallization.
Which scientist performed the first induced transmutation reaction?
Ernest Rutherford was the first scientist to perform an induced transmutation reaction in 1919 by bombarding nitrogen gas with alpha particles to create oxygen and hydrogen.
Why is the second crop of crystals in recrystallization less pure than the first?
Successive amounts of crystals obtained in the second crop are often less pure than the first crop since concentrating the filtrate solution will make some impurities to precipitate with the desired product.
Who was the first scientist to use liquid propellants?
Robert H. Goddard is considered the first scientist to successfully launch a liquid-fueled rocket in 1926. He used a combination of liquid oxygen and gasoline as propellants in his rocket experiments.
Who was the first scientist to suggest groupin substances into acids and alkalis?
The first scientist to suggest grouping substances into acids and alkalis was the French chemist Antoine Lavoisier in the 18th century. He categorized these substances based on their chemical properties and reactions.
What group of people first began to develop biology concepts?
The group of a scientist first began to develop biological concepts.
Did Einstein develop the theory of evolution?
no Charles Darwin was the first scientist to develop the theory of evolution. Einstein was a math teacher. and was first put into 'special' classes
Did the scientist J. Robert Oppenheimer led the effort to develop the first atomic bomb?
yes
What scientist first described evolution as a process of adaptation?
Jean-Baptiste Lamarck, a French scientist, was one of the first to propose a comprehensive theory of evolution in the early 19th century. He suggested that organisms can adapt to their environment through the inheritance of acquired characteristics.
What are the stages of the annealing process?
There are three stages in the annealing process. The first stage is when a metal is heated up and it is called the recovery stage. The second stage is called recrystallization and the third stage is called gain growth. Each stage represents a higher temperature in the annealing process.
What does a scientist make to test a hypothesis?
An experiment is designed to test the hypothesis. To create an experiment, you have to first think of the what materials are needed, and then develop a procedure.
Who produced the first controlled nuclear fission?
This was in Chicago in 1942, as part of the Manhattan Project to develop the A-bomb, and the chief scientist was Enrico Fermi.
A scientist wants to instert a new gene into bacterium what is the first step in this process?
cutting the gene out of DNA with enzymes
Who was the first scientist in the world and what was his first invention?
Scientists rarely invent, except for devices to assist their research. Scientists discover natural phenomena and develop theories to predict those phenomena.
What do bones first develop as?
Bones first develop as cartilage models which gradually ossify into bone through a process called endochondral ossification. This process involves the replacement of cartilage with bone tissue, resulting in the formation of the mature bone structure.
What scientist first described Pangaea?
what scientist first described pangea
What is extraction of salt from seawater?
Seawater is first filtrated and then refined by repeated processes of crystallization/dissolving/recrystallization.
