Science & Tech
Vocabulary for discussing the innovations shaping our modern world.
Innovations lightbulb
The Digital World computer
Scientific Research science
Useful Idioms chat
Discover vs. Invent
Newton discovered gravity. (រកឃើញទំនាញផែនដី)
Edison invented the telephone. (បង្កើតទូរស័ព្ទ)
Quick Check bolt
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Mission track_changes
Mission track_changes
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Recent Questions
Great question! Electricity was discovered (because it already existed in nature, like in lightning). But the lightbulb was invented (because humans created it from scratch). boltlightbulb
What is the difference between "Cutting-edge" and "State-of-the-art" from the last lesson?
They are very similar! Both mean highly advanced. "Cutting-edge" focuses more on being the newest, most innovative idea (maybe still in testing). "State-of-the-art" focuses on being the best equipment currently available on the market. smartphone
Is "Artificial Intelligence" singular or plural? Do I say "AI is" or "AI are"?
It is an uncountable noun (singular). So, you should say "AI is changing the world." smart_toy
I am still confused about Discover vs Invent. What about electricity?