常速英语

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What if I told you that supernovas aren't the brightest events in the Universe? Gamma-ray bursts are. They shine hundreds of times brighter and only last for several minutes at most. But even...

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(upbeat music) - A lot of the work you do is with blocks. It's the core shape of the platform. - [Narrator] Samuel Jordan has been making video games since he was 15 years old. - I've ...

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Congratulations, you've taken the seven-month-long journey and have finally landed on Mars. And it turns out, you're the first person. Better start cleaning the place up, and getting it...

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- [Narrator] The average U.S. household consumes about 11,000 kilowatt hours of electricity a year. The biggest share of that power about 16% goes to this, air conditioning. Summer months...

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See that strip of stars splashed across the night sky? That's our home galaxy, the Milky Way. You can see it from Earth because we live right on the outskirts, far away from all the fun...

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(playful music) - Why not? - [Narrator] This is Timothy Hammond, a Houston-based gardener who knows his arugula. - I'm an urban gardener and educator and one thing I know is that you'...

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Nothing can travel faster than light. But what if we switched the rules a little? Imagine a world, where the speed of light was slower - about the speed that sound travels at. In turn, th...

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- [Narrator] It's not just you your daily coffee ritual is getting more expensive. If you walk into an American cafe right now your average coffee drink is going to run you around $4.50. ...