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

Author Question: What observational properties of pulsars allowed astronomers to discover them as a new type of ... (Read 67 times)

KWilfred

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
What observational properties of pulsars allowed astronomers to discover them as a new type of object?
 
  What will be an ideal response?

Question 2

What were the three discoveries Galileo made with his telescope observations and quickly published into Sidereus Nuncius?
 
  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

ally

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 27, 2018
Answer to Question 1

A pulsar emits a very regular pattern of radiation in the radio band. The pulsation period is extremely constant and has a period between a few tenths of a second and a few seconds. Such a regular pattern of radiation was unexpected in nature, and clearly represented a new phenomenon.

Answer to Question 2

First, the moon was not perfect. It had mountains and valleys on its surface, and Galileo even used some of the mountains' shadows to calculate their height.

Second, the Milky Way was made up of myriad stars too faint to see with the unaided eye.

Third, four new planets circling Jupiter, objects known today as the Galilean moons of Jupiter.


KWilfred

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

epscape

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Hydrogen Bonding and the Properties of Water Hydrogen Bonding and the Properties of Water
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth. False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
Spectral and photochemical properties of photoactivatable fluorescent proteins. Spectral and photochemical properties of photoactivatable fluorescent proteins.
A typical fuel pulsator used mostly with roller vane-type pumps to help even out the pulsation in ... A typical fuel pulsator used mostly with roller vane-type pumps to help even out the pulsation in ...
The types of topological interconversions catalyzed by type II topoisomerases The types of topological interconversions catalyzed by type II topoisomerases
What type of online info about a job candidate should employment mgmt consider when screening What type of online info about a job candidate should employment mgmt consider when screening
Video: Polymerase chain reaction PCR - Animation

For a complete list of videos, visit our video library