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Welcome to Know-how 

— where amazing technology becomes easy to understand.
Discover groundbreaking inventions, ingenious engineering, advanced machines, and the hidden technology shaping our world. We explore how things work, why they matter, and the brilliant ideas behind them.
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Joined August 21, 2026
3,566,325 total views
United States

Videos

Inside the Engineering of the Las Vegas Sphere
3:43
Inside the Engineering of the Las Vegas Sphere

57 views

4d ago

Why SoFi Stadium Was Built 100 Feet Below Ground | Engineering Explained
3:17
Why SoFi Stadium Was Built 100 Feet Below Ground | Engineering Explained

29 views

5d ago

What Happens If a Spacesuit Is Punctured in Space?
3:41
What Happens If a Spacesuit Is Punctured in Space?

131 views

6d ago

How the Eiffel Tower Survives Wind: Engineering Paris’s Iron Giant
3:36
How the Eiffel Tower Survives Wind: Engineering Paris’s Iron Giant

254 views

8d ago

Why Future Moon Bases May Build Their Walls From Water
3:17
Why Future Moon Bases May Build Their Walls From Water

178 views

9d ago

Inside the LHC: Engineering the World’s Most Powerful Particle Accelerator
3:17
Inside the LHC: Engineering the World’s Most Powerful Particle Accelerator

144 views

10d ago

How NASA Could Build Roads on the Moon With Microwaves
3:23
How NASA Could Build Roads on the Moon With Microwaves

433 views

11d ago

How the Petronas Twin Towers Were Engineered
3:41
How the Petronas Twin Towers Were Engineered

97 views

12d ago

How NASA Made Oxygen on Mars | MOXIE Engineering Explained
4:56
How NASA Made Oxygen on Mars | MOXIE Engineering Explained

579 views

13d ago

How the Golden Gate Bridge Carries an Entire Roadway
4:03
How the Golden Gate Bridge Carries an Entire Roadway

99 views

2w ago

How Kuwait Turns Seawater Into Freshwater | Reverse Osmosis Engineering
3:03
How Kuwait Turns Seawater Into Freshwater | Reverse Osmosis Engineering

134 views

2w ago

How Phone Calls Actually Travel | Inside a Cellular Network
3:11
How Phone Calls Actually Travel | Inside a Cellular Network

87 views

2w ago

How Tokyo Skytree Survives Earthquakes | Engineering a 634m Tower
3:33
How Tokyo Skytree Survives Earthquakes | Engineering a 634m Tower

89 views

2w ago

How Engineers Built a Hotel 88 Meters Underground
3:33
How Engineers Built a Hotel 88 Meters Underground

552 views

2w ago

How Engineers Built the Heydar Aliyev Center’s Flowing Curves
3:19
How Engineers Built the Heydar Aliyev Center’s Flowing Curves

60 views

3w ago

How Rome’s Pantheon Dome Still Stands After 1,900 Years
3:53
How Rome’s Pantheon Dome Still Stands After 1,900 Years

317 views

3w ago

How Roman Engineering Kept an Empire Moving
4:46
How Roman Engineering Kept an Empire Moving

80 views

3w ago

How CAR-T Cells Are Engineered to Fight Cancer
3:04
How CAR-T Cells Are Engineered to Fight Cancer

54 views

3w ago

How the Three Gorges Dam Controls the Yangtze
5:10
How the Three Gorges Dam Controls the Yangtze

284 views

3w ago

How Engineers Pushed the Millau Viaduct Across the Sky
4:22
How Engineers Pushed the Millau Viaduct Across the Sky

219 views

3w ago

How Cayan Tower Twists 90° Around a Straight Core
4:35
How Cayan Tower Twists 90° Around a Straight Core

514 views

3w ago

How Giant Concrete Caissons Become Ocean Bridge Foundations
3:04
How Giant Concrete Caissons Become Ocean Bridge Foundations

540 views

1mo ago

Inside Korea’s Artificial Sun: 100 Million °C Fusion
3:04
Inside Korea’s Artificial Sun: 100 Million °C Fusion

402 views

1mo ago

How Maglev Trains Float and Reach Extreme Speeds
3:06
How Maglev Trains Float and Reach Extreme Speeds

219 views

1mo ago