This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What did Galileo discover when looking at the Sun with his telescope, and how did this support ... (Read 75 times)

rl

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
What did Galileo discover when looking at the Sun with his telescope, and how did this support Copernicus?
 
  What will be an ideal response?

Question 2

Why were the mass and density of Pluto unknown until Charon was found?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dellikani2015

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

Sunspots, which rotated across the Sun's face, showing that the Sun was not perfect and it (and Earth) could rotate on its axis.

Answer to Question 2

Pluto is so distant that its disk was not resolved well, and it had no discernable gravitational influence on Uranus and Neptune (Lowell's prediction was just luck). But Charon's orbit let us find the mass of both objects, and the series of eclipses allowed us to calculate the sizes of both bodies with great accuracy.


rl

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Gracias!

mohan

  • Member
  • Posts: 362
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

True-color view of Mars seen through NASA's Hubble Space Telescope in 1999 True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
Essentials of a Refracting Telescope Essentials of a Refracting Telescope
Buying a Telescope Buying a Telescope
How do we discover the Golden Mean? How do we discover the Golden Mean?
Tall safety stands can be used to provide additional support for the vehicle while on the hoist. Tall safety stands can be used to provide additional support for the vehicle while on the hoist.
Einstein telescope Einstein telescope
Video: Buffers definition and the role of buffer in the body

For a complete list of videos, visit our video library