Tim Burners-Lee

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Questions and Answers

What was Fred Hoyle's contribution to theoretical astrophysics?

He proposed the steady state theory of the Universe. (correct)
He developed the Big Bang theory.
He discovered the existence of black holes.
He introduced the concept of gravitational waves.

Which genetic condition did Irene Uchida specifically investigate in her research?

Cystic fibrosis
Sickle cell anemia
Hemophilia
Congenital heart disease (correct)

What significant achievement is associated with Katherine Johnson during her career at NASA?

Calculating trajectories for space missions. (correct)
Developing rocket propulsion systems.
Inventing spacecraft navigation systems.
Leading the lunar landing project.

What propulsion technology did Yvonne Brill develop?

A propulsion system for unmanned spacecraft in stationary orbit. (D) Signup and view all the answers

What did Abdus Salam's electroweak theory propose?

The existence of messenger particles for weak interactions. (D) Signup and view all the answers

What was Vera Rubin's key discovery regarding star motion in galaxies?

Outer stars orbit as fast as those close to the center. (A) Signup and view all the answers

Which of the following did Fred Hoyle coin during a radio talk?

Big Bang (D) Signup and view all the answers

What area of research did Irene Uchida focus on beyond genetic conditions?

The impact of X-rays on chromosomes. (C) Signup and view all the answers

How did Abdus Salam's work impact the study of particle physics?

It unified the electromagnetic force with weak interaction. (A) Signup and view all the answers

What was the primary application of Yvonne Brill's propulsion systems?

Unmanned spacecraft station keeping. (D) Signup and view all the answers

Flashcards

Steady State Theory

The theory that the universe expands while maintaining a constant average density because new matter is continuously created.

Big Bang Theory

A rival theory to the steady-state theory, stating that the universe began from a very hot, dense state.

Hoyle's work on elements

Fred Hoyle investigated how nuclear reactions in stars create most chemical elements step-by-step.

Irene Uchida's focus

Irene Uchida studied how genes and chromosomes impact health, specifically investigating chromosome differences in genetic conditions like Down syndrome.