Nicely done. What program/app are we seeing at the end of the video?

powdertoy, it's a free download and tons of fun to play with

how is a blackhole formed?

A black hole is formed when a super massive star reaches iron in nuclear fusion the stars core is not hot enough to fuse iron so the star is not producing the radiation to fight against the gravity of the massive star then it collapses it is so dense that it shrinks to a huge a mount of mass over very little matter ,like less then an atom. Then it becomes so dense that at a certain point(horizon point, The Black stuff) Light can't even come back because there is so much gravity.

i have a very absurd question (please reply):what happens to the particles exactly on the event horizon?

All particles, objects, matter, and even light will appear to freeze directly at the event horizon. It will slowly redshift as the wavelengths of light from it that are returning to the observer get stretched, until it completely vanishes. Directly on and past the event horizon is when the effect of gravity is impossible to overcome.

What happens when two black holes collide?

when black holes collide, one of them gets bigger

Main content

Interstellar and Hawking radiation

Google Classroom

By Hanna Kessler
Many of the more obscure physics concepts are incredibly interesting, but often take a technical mind and a lot of background to really wrap your head around. I chose Hawking Radiation in particular because it does not contain a lot of jargon or technical terms, but is still conceptually difficult.

Want to join the conversation?

Sort by:

ＫＥＶＩＮ
Posted 8 years ago. Direct link to ＫＥＶＩＮ's post “Nicely done. What program...”
Nicely done. What program/app are we seeing at the end of the video?
Button navigates to signup pageButton navigates to signup page
(4 votes)
Answer
- Hanna Kessler
  Posted 8 years ago. Direct link to Hanna Kessler's post “powdertoy, it's a free do...”
  powdertoy, it's a free download and tons of fun to play with
  Comment on Hanna Kessler's post “powdertoy, it's a free do...”
  (2 votes)
Arkadip Mukherjee
Posted 8 years ago. Direct link to Arkadip Mukherjee's post “how is a blackhole formed...”
how is a blackhole formed?
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- 22rkapadia
  Posted 8 years ago. Direct link to 22rkapadia's post “A black hole is formed wh...”
  A black hole is formed when a super massive star reaches iron in nuclear fusion the stars core is not hot enough to fuse iron so the star is not producing the radiation to fight against the gravity of the massive star then it collapses it is so dense that it shrinks to a huge a mount of mass over very little matter ,like less then an atom. Then it becomes so dense that at a certain point(horizon point, The Black stuff) Light can't even come back because there is so much gravity.
  Comment on 22rkapadia's post “A black hole is formed wh...”
  (4 votes)
LucyDioIsMyCat
Posted 5 years ago. Direct link to LucyDioIsMyCat's post “i have a very absurd ques...”
i have a very absurd question (please reply):what happens to the particles exactly on the event horizon?
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- Şχβ
  Posted 2 years ago. Direct link to Şχβ's post “All particles, objects, m...”
  All particles, objects, matter, and even light will appear to freeze directly at the event horizon. It will slowly redshift as the wavelengths of light from it that are returning to the observer get stretched, until it completely vanishes. Directly on and past the event horizon is when the effect of gravity is impossible to overcome.
  Button navigates to signup page
  (2 votes)
Maurgea
Posted 7 years ago. Direct link to Maurgea's post “Where does the second ev...”
Where does the second event horizon come from towards the end of the video?
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- Hanna Kessler
  Posted 7 years ago. Direct link to Hanna Kessler's post “This represents the event...”
  This represents the event horizon for antiparticles.
  Button navigates to signup page
  (1 vote)
Jubjub Bird
Posted 7 years ago. Direct link to Jubjub Bird's post “What happens when two bla...”
What happens when two black holes collide?
Button navigates to signup pageComment on Jubjub Bird's post “What happens when two bla...”
(1 vote)
Answer
- robotheo
  Posted 6 years ago. Direct link to robotheo's post “when black holes collide,...”
  when black holes collide, one of them gets bigger
  Button navigates to signup page
  (2 votes)

Course: Breakthrough Junior Challenge > Unit 1

Interstellar and Hawking radiation

Want to join the conversation?

Video transcript