Learn more about scienceandnature with this collection
How to ask open-ended questions
How to avoid awkward silences
How to show interest in others
What is a Black hole ?
Black holes cannot be seen as they don't reflect any light.
The centre of black hole is called singularity - a point of infinite density i.e the space curvature extends to infinity.
According to scientists, billons of black holes exists of which millions are having the abode Milky way galaxy
39
718 reads
MORE IDEAS ON THIS
Properties
- With no light escaping from the black hole, there is no way that anyone watching from a distance could actually witness your descent. In space, no one can hear you scream; and in a black hole, no one can see you disappear.
31
190 reads
Einstein‘s View
- It was already clear that a uniform spherical star would contract to a point of infinite density, a singularity.
- Einstein’s Theory of General Relativity says that objects distort the space-time around them.
- At this point of infinite density, one can’t predict the future, whic...
32
184 reads
Singularity
- if you take pressure out of the calculation,a uniform spherically symmetric star would contract to a single point of infinite density,I.e,Singularity.
- A singularity is what you end up with when a giant star is compressed to an unimaginably small point.
- It refers not...
32
192 reads
Information
- All the black hole will remember is the total mass, the state of rotation and the electric charge.
- A black hole has a boundary, called the event horizon. This is where gravity is just strong enough to drag light back and prevent it escaping.
- Because nothing can travel faster...
32
169 reads
Formation of Black holes
- During most of the life of a normal star, over many billions of years, it will support itself against its own gravity by thermal pressure, caused by nuclear processes which convert hydrogen into helium.
- The explosive force of nuclear fusion inside them creates outward pressure which ...
31
255 reads
Can‘t see , but how do we know their existence
- But scientists know they exist because they rip apart stars that get too close to them and because they can send tremors through space.
- It was a collision between two black holes more than a billion years ago that triggered what are called ‘gravitational waves’.
33
299 reads
Related collections
More like this
How Big Are Black Holes?
Black holes can be big or small. Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain. Mass is the amount of matter in an object.
The largest black holes are called "supermass...
What is inside black hole?
A black hole is a region where gravity is so strong that light cannot escape itself.
A black hole has a boundary called the event horizon. It is where gravity is just strong enough to track light back and prevent it from escaping. Because nothing can travel faster than ligh...
Fear as a black hole
Blackholes from out, look completely dark, but inside it contains some light.
Similarly, the fear on our faces represents the outermost part of the black hole, while inside us there exists a hope called light.
Explore the World’s
Best Ideas
200,000+ ideas on pretty much any topic. Created by the smartest people around & well-organized so you can explore at will.
An Idea for Everything
Explore the biggest library of insights. And we've infused it with powerful filtering tools so you can easily find what you need.
Knowledge Library
Powerful Saving & Organizational Tools
Save ideas for later reading, for personalized stashes, or for remembering it later.
Start
31 ideas
Start
44 ideas
# Personal Growth
Take Your Ideas
Anywhere
Organize your ideas & listen on the go. And with Pro, there are no limits.
Listen on the go
Just press play and we take care of the words.
Never worry about spotty connections
No Internet access? No problem. Within the mobile app, all your ideas are available, even when offline.
Get Organized with Stashes
Ideas for your next work project? Quotes that inspire you? Put them in the right place so you never lose them.
Start
47 ideas
Start
75 ideas
My Stashes
Join
2 Million Stashers
4.8
5,740 Reviews
App Store
4.7
72,690 Reviews
Google Play
Sean Green
Great interesting short snippets of informative articles. Highly recommended to anyone who loves information and lacks patience.
“
Ashley Anthony
This app is LOADED with RELEVANT, HELPFUL, AND EDUCATIONAL material. It is creatively intellectual, yet minimal enough to not overstimulate and create a learning block. I am exceptionally impressed with this app!
“
Shankul Varada
Best app ever! You heard it right. This app has helped me get back on my quest to get things done while equipping myself with knowledge everyday.
“
samz905
Don’t look further if you love learning new things. A refreshing concept that provides quick ideas for busy thought leaders.
“
Laetitia Berton
I have only been using it for a few days now, but I have found answers to questions I had never consciously formulated, or to problems I face everyday at work or at home. I wish I had found this earlier, highly recommended!
“
Giovanna Scalzone
Brilliant. It feels fresh and encouraging. So many interesting pieces of information that are just enough to absorb and apply. So happy I found this.
“
Jamyson Haug
Great for quick bits of information and interesting ideas around whatever topics you are interested in. Visually, it looks great as well.
“
Ghazala Begum
Even five minutes a day will improve your thinking. I've come across new ideas and learnt to improve existing ways to become more motivated, confident and happier.
“
Read & Learn
20x Faster
without
deepstash
with
deepstash
with
deepstash
Access to 200,000+ ideas
—
Access to the mobile app
—
Unlimited idea saving & library
—
—
Unlimited history
—
—
Unlimited listening to ideas
—
—
Downloading & offline access
—
—
Personalized recommendations
—
—
Supercharge your mind with one idea per day
Enter your email and spend 1 minute every day to learn something new.
I agree to receive email updates