Question

*Open challenge*

#No anyone can satisfy me on this brainly ...
##I haven't ask any question yet but I'm gonna to ask...here:-
Is any brilliant here who can answer my question???##



∆so, the question is:-

1)Who was Galileo Galilei? Why he followed " The Heliocentric Theory Of Copernicus ?Why the people at that time thoughts that sun and other planets rotate around the earth?

2)Who discovered alpha , beta and gamma particle?

3)What is radioactive decay?

4)What is Becquerel ray and radioactive substance?


Moderator can try also....no rubbish answer...

Answer 1

hello friends well Galileo Galilei was one of the most renowned scientist of his time who proposed the Law of Inertia also known as the first law of motion.

he followed the helocentric theory of Copernicus because when he observed the motion of the rotation of the Planet with the help of the telescope which he himself made he found that the position of other planets its with respect to the sun therefore he also follow the hello centric theory of Copernicus



people at that time follow the geocentric theory because most of the people of the priests suggest that the Earth is fixed and other planets and the sun revolves around so they fear that if they go against the priest And the Church they may have to be face some punishment which results in their death and other thing .

Ernest Rutherford discovered the alpha beta and gamma particles .

Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron .

a ray emitted by a radioactive substance —used before radioactive emissions were classified as alpha and beta particles and gamma-ray photons.



radioactive substances are those substances which emits and radiation for their stability such as uranium 235 plutonium.


hope this will help you

Answer 2

1) Galileo galilei was an italian polymath..
Galileo was championing pf heliocentrism and copernicaism and was controversial during his lifetime

following Galileo's new discoveries by means of telescope,
in his discoveries , writings and speeches, Galileo Galilee contributed to the copernican theory.

galilieo is very well known for his work..

he is known as "father of observational astronomy."
"father of modern physics" "father of the scientific method" and "father of science"..

it was people's mentality that sun and other planets rotate around the earth


2) Ernest rutherford discovered the alpha, beta and gamma particles..

3) radioactive decay is also known as radioactivity is a process in which the unstable atomic particles losses tgeir energu such as alpha beta and gamma particle..

hope helped...