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841,931 Views
Thinking & Learning
What’s the difference between a scientific law and theory?
Lesson duration 05:12
1,644,718 Views
2,489,244 Views
411,842 Views
Science & Technology
How a few scientists transformed the way we think about disease
Lesson duration 04:39
632,835 Views
2,539,372 Views
533,411 Views
28,214,594 Views
4,643,632 Views
6,119,558 Views
21,096,463 Views
3,399,781 Views
Philosophy & Religion
Can you solve the famously difficult green-eyed logic puzzle?
Lesson duration 04:42
14,746,969 Views
206,451 Views
438,176 Views
1,390,715 Views
420,342 Views
363,359 Views
721,337 Views
1,036,444 Views
1,012,817 Views
Design, Engineering & Technology
What's the difference between accuracy and precision?
Lesson duration 04:53
5,421,721 Views
478,803 Views