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Why China's One-Child Policy Failed03:30

Why China's One-Child Policy Failed

357
B1
10 Things Back to the Future 2 Got Wrong04:28

10 Things Back to the Future 2 Got Wrong

425
B1
Can We Rely on Wind and Solar Energy?04:24

Can We Rely on Wind and Solar Energy?

680
B1
Vitamin D Deficiency - Do You Have These Symptoms?04:06

Vitamin D Deficiency - Do You Have These Symptoms?

72
B1
1.6 Reception, Signs, Signification04:18

1.6 Reception, Signs, Signification

88
B1
Why Do We Twitch Before Falling Asleep?03:31

Why Do We Twitch Before Falling Asleep?

80
B1
How We Turn Solar Energy Into Electricity04:03

How We Turn Solar Energy Into Electricity

510
B1
Should You Eat Your Placenta?04:06

Should You Eat Your Placenta?

78
B2
The Huge Problem With For-Profit Prisons03:42

The Huge Problem With For-Profit Prisons

185
B1
Is a $170 Chromebook Worth It?02:51

Is a $170 Chromebook Worth It?

144
B2
How Websites Work03:50

How Websites Work

97
A2
How to Use a Raw Egg to Determine if Your Mattress is Awful - #PURPLE03:59

How to Use a Raw Egg to Determine if Your Mattress is Awful - #PURPLE

58
B1
What Was China's Cultural Revolution and Why Was It So Violent?03:57

What Was China's Cultural Revolution and Why Was It So Violent?

113
B2
NASA Hallmark of Success Video: Bloom Energy03:16

NASA Hallmark of Success Video: Bloom Energy

38
B1
How Big is the Universe? | NASA's Hubble Deep Field Image04:17

How Big is the Universe? | NASA's Hubble Deep Field Image

391
B2
Why Sexy Is Sexy03:29

Why Sexy Is Sexy

313
B2
Can You be Addicted to Sugar?04:30

Can You be Addicted to Sugar?

24569
B1
What If North Korea And The U.S. Went To War?03:22

What If North Korea And The U.S. Went To War?

356
B1