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Prof. Carl Sagan

@ProfCarlSagan • 72,419 subscribers

Tribute to the man who taught us skepticism, critical thinking, and a sense of wonder for the natural world.

Shorts

The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge, and there's no place for it in the endeavor of science.

The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge, and there's no place for it in the endeavor of science.

39,942 просмотров

Any single person who tells you that they know what happens to a human being after they have died is either a liar or a fool.

Any single person who tells you that they know what happens to a human being after they have died is either a liar or a fool.

19,230 просмотров

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Do not use your energy to worry. Use your energy to believe, to create, to learn, to think and to grow. - Richard Feynman

Do not use your energy to worry. Use your energy to believe, to create, to learn, to think and to grow. - Richard Feynman

Prof. Carl Sagan

440,191 просмотров • 6 месяцев назад

Right Now, most of the American can relate to this message from the 90's.

Right Now, most of the American can relate to this message from the 90's.

Prof. Carl Sagan

938,121 просмотров • 1 год назад

Stephen Fry responds to a Question; What would he say if he met the God at the Gate?

Stephen Fry responds to a Question; What would he say if he met the God at the Gate?

Prof. Carl Sagan

535,217 просмотров • 10 месяцев назад

Carl Sagan in 1990 with a very compelling argument still relevant today.

Carl Sagan in 1990 with a very compelling argument still relevant today.

Prof. Carl Sagan

122,164 просмотров • 2 месяцев назад

Are You a Socialist?

Are You a Socialist?

Prof. Carl Sagan

110,986 просмотров • 2 месяцев назад

American chemist Wallace Carothers discovered nylon in 1935 while leading research at DuPont. His goal was to create synthetic "superpolymers" with protein-like structures to emulate or replace natural silk. During his 1976 Christmas Lectures, George Porter amazed children in the audience by making nylon right there in the lecturessolved theatre. ( 🎥 Royal Institution (now on Bluesky) )

American chemist Wallace Carothers discovered nylon in 1935 while leading research at DuPont. His goal was to create synthetic "superpolymers" with protein-like structures to emulate or replace natural silk. During his 1976 Christmas Lectures, George Porter amazed children in the audience by making nylon right there in the lecturessolved theatre. ( 🎥 Royal Institution (now on Bluesky) )

Prof. Carl Sagan

370,191 просмотров • 10 месяцев назад

Creation Science doesn't belong in science classroom.

Creation Science doesn't belong in science classroom.

Prof. Carl Sagan

57,903 просмотров • 1 месяц назад

Humans are not the center of the Universe.

Humans are not the center of the Universe.

Prof. Carl Sagan

51,980 просмотров • 1 месяц назад

Carl Sagan explained in his 1977 Christmas Lectures that Earth's initial hydrogen-rich atmosphere was lost to space because Earth's gravity was too weak to hold onto the light hydrogen atoms, which could easily achieve escape velocity. This allowed the atmosphere to evolve into the second, more stable composition (rich in volcanic gases like CO2, methane, etc.) before oxygen became dominant.

Carl Sagan explained in his 1977 Christmas Lectures that Earth's initial hydrogen-rich atmosphere was lost to space because Earth's gravity was too weak to hold onto the light hydrogen atoms, which could easily achieve escape velocity. This allowed the atmosphere to evolve into the second, more stable composition (rich in volcanic gases like CO2, methane, etc.) before oxygen became dominant.

Prof. Carl Sagan

200,181 просмотров • 10 месяцев назад

Do you Remember this Voice?

Do you Remember this Voice?

Prof. Carl Sagan

469,262 просмотров • 2 лет назад

Carl Sagan Explains 4th Dimension in simple terms

Carl Sagan Explains 4th Dimension in simple terms

Prof. Carl Sagan

150,404 просмотров • 9 месяцев назад

There are mainly two kinds of dangerous in our society, Carl Sagan nailed it long ago...

There are mainly two kinds of dangerous in our society, Carl Sagan nailed it long ago...

Prof. Carl Sagan

161,805 просмотров • 1 год назад

Do you agree with Carl Sagan? (🎥Source; CarlSaganDotCom )

Do you agree with Carl Sagan? (🎥Source; CarlSaganDotCom )

Prof. Carl Sagan

176,513 просмотров • 1 год назад

Science Class with Carl Sagan.

Science Class with Carl Sagan.

Prof. Carl Sagan

78,316 просмотров • 8 месяцев назад

Brian Cox explains quantum mechanics in 60 seconds.

Brian Cox explains quantum mechanics in 60 seconds.

Prof. Carl Sagan

147,372 просмотров • 1 год назад

Carl Sagan's insight teaches us that encouraging kids to ask questions about the world is vital for humanity's growth. When we support their curiosity, we're helping them connect with something bigger than themselves.

Carl Sagan's insight teaches us that encouraging kids to ask questions about the world is vital for humanity's growth. When we support their curiosity, we're helping them connect with something bigger than themselves.

Prof. Carl Sagan

111,963 просмотров • 1 год назад

Issac Asimov's Take on religion and Morality.

Issac Asimov's Take on religion and Morality.

Prof. Carl Sagan

130,187 просмотров • 1 год назад

"I was the worst out of 250." - John Gurdon

"I was the worst out of 250." - John Gurdon

Prof. Carl Sagan

16,506 просмотров • 1 месяц назад