How much energy will approximately be released if all the atoms of 1 kg of deuterium could undergo fusion?
Anonymous Quiz
16%
(a) 2 × 10^7 kWh
30%
(b) 9 × 10^13J
27%
(c) 6 × 10^27 Cal
26%
(d) 8 × 10^23 MeV.
The binding energy per nucleon is almost constant for many nuclei. It shows that nuclear forces are
Anonymous Quiz
39%
(a) Charge independent
31%
(b) short range in nature
17%
(c) saturated in nature
14%
(d) attractive in nature
"You cannot hope to build a better world without improving the individuals. To that end, each of us must work for our own improvement."
Marie Salomea Sklodowska Curie was a polish Physicist and chemist known for her research on Radioactivity. She is the first woman to win the Nobel Prize, the first person and only woman to win Two Nobel Prizes and the only person to win the Nobel prize in two different scientific fields.
This marks her genius.
This quote oh her " IN SCIENCE, WE MUST BE INTERESTED IN THINGS, NOT IN PERSONS." is personally my favourite quotes.
@thecaqm
Marie Salomea Sklodowska Curie was a polish Physicist and chemist known for her research on Radioactivity. She is the first woman to win the Nobel Prize, the first person and only woman to win Two Nobel Prizes and the only person to win the Nobel prize in two different scientific fields.
This marks her genius.
This quote oh her " IN SCIENCE, WE MUST BE INTERESTED IN THINGS, NOT IN PERSONS." is personally my favourite quotes.
@thecaqm
When Oppenheimer met Einstein:
"Einstein, who had witnessed the cataclysmic potential of this energy, was cautiously wary. He cautioned against the unbridled release of such power, fearing its devastating consequences. Oppenheimer, however, saw a glimmer of controlled potential — a path toward unlocking the secrets of the nucleus for the betterment of humanity."
[Image: © Alfred Eisenstaedt/The LIFE Picture]
Click here for full article
Join @thecaqm.
"Einstein, who had witnessed the cataclysmic potential of this energy, was cautiously wary. He cautioned against the unbridled release of such power, fearing its devastating consequences. Oppenheimer, however, saw a glimmer of controlled potential — a path toward unlocking the secrets of the nucleus for the betterment of humanity."
[Image: © Alfred Eisenstaedt/The LIFE Picture]
Click here for full article
Join @thecaqm.
Astrophysicist sometimes study about the temperature of stars. Which of these stars would be the hottest?
Anonymous Quiz
31%
White star
8%
Yellow star
21%
Red star
40%
Blue star
What will happen if the density of the universe is less than the critical density?
Anonymous Quiz
29%
The universe will contract
24%
The universe will contract and then rebound
20%
The universe will stop expanding
27%
The universe will keep expanding forever
Planets in the habitable zone have just the right___________for life
Anonymous Quiz
5%
Surface
38%
Temperature
53%
Atmospheric composition
4%
Luminosity
The point where whole weight may be assumed to act is called
Anonymous Quiz
54%
Centre of mass
11%
Centre of weight
4%
Centre of acceleration
30%
Centre of gravity
The position of a planet when it is nearest to the Sun is called
Anonymous Quiz
20%
Perigee
42%
Perihelion
24%
Aphelion
14%
Apogee
If the Earth stops rotating, the value of g at the equator
Anonymous Quiz
35%
Increases
23%
Decreases
33%
No effect
9%
First increase and then decrease
Space between Earth and moon is known as
Anonymous Quiz
18%
Nebula
26%
Fulalunar
41%
Cislunar
15%
B&C
Name the star formed by dark matter halo.
Anonymous Quiz
12%
Red dwarf
32%
Dark matter star
6%
Yellow dwarf
24%
Quasi star
12%
Protostar
13%
Neutron star
Black holes, wormholes and time machines.pdf
4.9 MB
Black Holes, Wormholes, and Time Machines
by Jim Al-Khalili
Do you know:
•What might happen if you fall into a black hole?
•That the Universe does not have an edge?
•That the reason it gets dark at night is proof of the Big Bang?
•That cosmic particles time-travel through the atmosphere defying death?
•That our past, present, and future might all coexist "out there"?
With two remarkable ideas, Albert Einstein revolutionized our view of the Universe. Einstein showed how Spacetime is warped and stretched by the gravity of all objects in the Universe and even punctured by black holes. But such possible twisting of Spacetime allowed a magic not even Einstein could have imagined: time travel.
Theoretical physicist Jim Al-Khalili finally lays science fiction to rest as he opens up Einstein's Universe.
Share: @thecaqm
by Jim Al-Khalili
Do you know:
•What might happen if you fall into a black hole?
•That the Universe does not have an edge?
•That the reason it gets dark at night is proof of the Big Bang?
•That cosmic particles time-travel through the atmosphere defying death?
•That our past, present, and future might all coexist "out there"?
With two remarkable ideas, Albert Einstein revolutionized our view of the Universe. Einstein showed how Spacetime is warped and stretched by the gravity of all objects in the Universe and even punctured by black holes. But such possible twisting of Spacetime allowed a magic not even Einstein could have imagined: time travel.
Theoretical physicist Jim Al-Khalili finally lays science fiction to rest as he opens up Einstein's Universe.
Share: @thecaqm