Upload date
All time
Last hour
Today
This week
This month
This year
Type
All
Video
Channel
Playlist
Movie
Duration
Short (< 4 minutes)
Medium (4-20 minutes)
Long (> 20 minutes)
Sort by
Relevance
Rating
View count
Features
HD
Subtitles/CC
Creative Commons
3D
Live
4K
360°
VR180
HDR
227,348,148 results
In the United States, it's estimated that 30 percent of adults and 66 percent of adolescents are regularly sleep-deprived. This isn't ...
13,964,572 views
8 years ago
Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role ...
21,643,945 views
How to Fast. What if you decided to quit eating for an entire week? Would it be dangerous for your body? Nowadays, many people ...
11,343,815 views
5 years ago
Russia and NATO seem just one accident away from full-blown war, but if it went down what would it look like and who would ...
1,090,920 views
1 year ago
Human beings are everywhere. With settlements on every continent, we can be found in the most isolated corners of Earth's ...
4,973,075 views
Could Earth orbit the Sun and a black hole? Would we survive spaghettification? What would happen if we get past the event ...
7,577,693 views
3 years ago
Holding your urine for too long can weaken the bladder muscles over time. This can lead to problems such as incontinence and ...
14,661,914 views
What Happens When We Die | Human Body | Human Body Decomposition | Decomposition Process Explained | Biology Video ...
6,903,036 views
Last week, Rep. Darrell Issa (R-CA) questions experts on narcotics during a House Foreign Affairs Committee hearing. Fuel your ...
1,274 views
12 hours ago
Have you ever thought about cutting sugar from your diet but hesitated because your favorite sugary treats like chocolate cake or ...
161 views
1 day ago
You're about to hear two of the scariest words in the English language - peak oil. Effectively, they mean the end of the world as we ...
203,235 views
If you traveled 10000 years into the future, what would planet Earth look like? Would most of its surface be covered in volcanoes?
9,824,820 views
Explore the possibilities and challenges of what a vegetarian world could look like if we all immediately stopped eating meat.
730,870 views
8 months ago
Is your future already written? Do your past, present, and future all exist right now? Surprisingly, the answer could be yes.
8,830,886 views
4 months ago
Throughout the first day of our absence, all of the fossil fuel power plants around the world would shut down in rapid succession ...
553,959 views
Hang on because we're about to screech to a halt. That's right. The Earth is going to stop spinning for five seconds. How much ...
5,871,747 views
2 years ago
REMASTERED IN HD! Official Music Video for What Would Happen performed by Meredith Brooks. Follow Meredith Brooks: ...
221,023 views
What if the whole world all of a sudden became vegetarian? Would anything change? How bad is meat for the environment?
1,172,787 views
6 years ago
Correction: we mixed up the Sun's lifespan with its age. Of course the sun is only about 4.6 billion years old, half way through its ...
10,806,227 views
4 years ago
From a scientific point of view, all the water on the planet isn't enough to drown all life. But what, by and large, is the difference ...
4,464,999 views