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 38 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
Great answer, keep it coming :)

pangili4

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Scattergrams are a mechanism used by political scientists to show patterns and relationships among v Scattergrams are a mechanism used by political scientists to show patterns and relationships among v
For Gulf War veterans, lack of social support in the field is related to postwar depression. The ... For Gulf War veterans, lack of social support in the field is related to postwar depression. The ...
A CNG storage tank from a Honda Civic GX shown with the fixture used to support it while it is being ... A CNG storage tank from a Honda Civic GX shown with the fixture used to support it while it is being ...
Newton Telescope Newton Telescope
Telescope Telescope
Video: baroreceptors

For a complete list of videos, visit our video library