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 29 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!

cassie_ragen

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

The Largest Refracting Telescope The Largest Refracting Telescope
Portable tabletop equipment that provides support for recipients receiving massage. Portable tabletop equipment that provides support for recipients receiving massage.
Hubble Space telescope Hubble Space telescope
Telescope Telescope
Newton Telescope Newton Telescope
Life support system of a developing human Life support system of a developing human
Video: Nucleic acid digestion -small intestine

For a complete list of videos, visit our video library