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About ultraviolet radiation?sortBy=relevance results of 1,620
找不到喜歡的影片嗎？你也能自己匯入影片喔
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07:50
Do Cell Phones Cause Brain Tumors?
6
B1
06:35
3 Times We Captured Physical Pieces of the Sun
6
B1
05:22
This Reaction Could Let Us Live on Mars
6
B1
02:30
Why is the Sun Yellow and the Sky Blue?
9601
B1
03:23
What is Migraine? | #aumsum
31
B2
02:27
Lawrence Krauss: The Flavors of Nothing (YouTube Geek Week!)
23
B1
03:05
How Cold is Space?
136
B1
05:12
How a Microwave Oven Works
60
B2
04:25
How Do Microwaves Work?
114
B1
04:35
Earth’s Magnetic North Pole Is Shifting South… So What Now?
3
B2
05:10
No Human Has Ever Left Earth’s Atmosphere, Here's Why
4
B1
16:22
Stage 3 Melanoma in Dogs: What Can We Do Next? | Dr. Nancy Reese Q&A
2
B1
12:16
Nebulae: Crash Course Astronomy #36
244
B2
02:15
Rafe Esquith and the role of the teacher | HundrED
6
A2
10:01
A Look Back at the Chernobyl Disaster | August 14, 2019
19
B1
09:20
The First Color That Appeared in the Universe
3
B2
09:10
Geoengineering: A Horrible Idea We Might Have to Do
3
B1
10:12
Black holes: why they matter
4188
B1
02:02
Functions of the Integumentary System
20
B1
03:51
L9P1
530
B2
04:18
What If a Gamma-Ray Burst Hits the Earth?
5
B1
04:09
What If All Stars Exploded at the Same Time?
4
B1
05:03
The Most Inspiring Speech: 4 True Rules To Success | A. P. J. Abdul Kalam
18
B1
04:24
Could this new tech stop your glasses from fogging up? | BBC News
3291
B1
04:38
What Is A Tumor?
197
B2
03:47
What If You Traveled Faster Than The Speed Of Light?
68
B1
03:51
The Atlantic Compares Global Virus Response With U.S. Response | Morning Joe | MSNBC
7
B1
02:38
How to Protect Yourself From Coronavirus on Public Transit
5
B1
10:03
27 Unbelievable Local Traditions - mental_floss on YouTube (Ep.214)
361
B1
09:57
The Integumentary System, Part 2 - Skin Deeper: Crash Course A&P #7
117
B2
10:46
Sensation & Perception - Crash Course Psychology #5
1149
B2
12:41
Coronavirus Epidemic Update 30: More Global COVID-19 Outbreaks, Vitamin D May Aid Prevention
2
B1
11:48
Marie Curie and Spooky Rays: Crash Course History of Science #31
3
B1
01:25
What is a Neutrino?
48
B2
10:00
A Deadly Vampire Disease Breaks Out in Guillermo Del Toro's The Strain - Dark Horse Motion Comics
200
B1
09:48
Top 10 Times Milla Jovovich Went Beast Mode
6
B1
06:34
The Mars Homes That NASA Awarded $500k
8
B1
01:43
Rancher guards irradiated cattle near Fukushima
15
B1
54:24
26. Chernobyl — How It Happened
2
B1
03:39
What's At The End Of The Universe?
7742
B1
03:21
This Much Will Kill You pt.2
10663
B2
03:42
Should We Live On Venus BEFORE Mars?
119
B1
02:59
Conservation | René Magritte. The Portrait. 1935
60
B1
02:29
Tiny Arthropods Helping Mosses!
43
B2
02:51
How Far Can Legolas See?
5815
B1
07:19
David Bowie Started Out In A Mime Troupe - "Late Night With Conan O'Brien"
4
A2
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