The radar during war could spot planes before they appired and the heart transplant
I would say the US articles of Confederation may have provided for a weak central government and these were replaced to provide for a strong federal government and perhaps this was when the original confederation was changed to a federation where the states relation to the federal government was no longer voluntary.
Answer:
By voting
and term limits
Explanation:
Since we're a democratic society we vote to "give the people power" against the government.
The encomienda system was seen as a true trusteeship among the
population, as opposed to the repartimiento system which was seen as
abusive, and was thought to promote unethical behavior.
The correct answer is Sir Ernest Rutherford.
One of the first findings on atomic energy theory was reached in 1911 by Rutherford, who became known as the father of nuclear physics.
He discovered that the mass of the atom was concentrated in its nucleus, and proposed that the nucleus has a positive charge and is surrounded by negatively charged electrons, which had been discovered in 1897 by J. J. Thomson.
His theory was complemented in 1913 by Niels Bohr, who placed the electrons in definite shells or quantum levels.