The video owner has disabled playback on external websites.
This video is no longer available on YouTube.
This video cannot be played right now.
Watch on YouTube
Unlock AI-Powered Learning Tools
Sign up to access powerful tools that help you learn faster from every video.
Will laser blasters ever be possible? - Christopher Baird
AI Summary
This video examines whether science fiction laser weapons could ever become reality, while explaining how lasers actually work through the process of stimulated emission. Learners will build vocabulary around physics and optics, including terms like 'photons,' 'monochromatic,' 'coherent light,' and 'stimulated emission.' The video also covers real-world laser applications from barcode scanners to gravitational wave observatories, making it great for science and technology English.
Learning Stats
CEFR Level
Total Words
Unique Words
Difficulty
Subtitles (40 segments)
DownloadDropping out of light speed, a fleet of rebel spaceships is greeted by a frenzy of laser blasts— illuminating the sector with brilliant bursts of light.
Science fiction has shown us scenes like this for decades, but the lasers in our daily lives seem far less dazzling and destructive.
Laser eye surgery can cut tissue, and laser cutters can shape wood or plastic, but neither seems strong enough to pierce a spaceship.
And laser pointers are more likely to annoy a cat than an evil empire.
So could sci-fi laser weaponry ever exist?
And how do lasers even work in the first place?
Lasers are devices that produce laser beams, which are ultimately just a form of light.
But these beams have special properties.
Full subtitles available in the video player
Key Vocabulary (18)
Describes a statement, argument, or piece of writing that is clear, logical, and consistently organized. It implies that all separate parts fit together perfectly to form a sensible and understandable whole.
A specific size category for items such as clothing, coffee, or containers that is bigger than medium. It is commonly used when selecting from a range of standard sizes in shops and restaurants.
The word 'same' is used to describe things or people that are identical or not different from each other. It indicates that two or more things are exactly alike in every way or are the very same entity.
Grammar in This Video
Practice with Exercises
Generate vocabulary, grammar, and comprehension exercises from this video
Comments (0)
Login to CommentSign up to unlock full features
Track progress, save vocabulary, and practice exercises
Interactive Mode
Quiz
Correct answer:
Categories
Related Videos
Americans Don't Understand English | The Jonathan Ross Show
Office moments that will stay with me FOREVER
Ranch Hands & Bikers' Brawl | Yellowstone | Paramount Network
Political blooper: MP's Scottish accent baffles British parliamentarian
Coin Operated - Animated Short Film
TED-Ed
Quiz
Correct answer:
Quizzes appear as you watch the video
Memory Tip
From this video
Start learning languages for free
