常速英语

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Imagine if our night sky looked like this. Looks cool, doesn't it? Well, what's not cool, is that you'd have to live your life without electricity, cars, rockets, jewelry, or you cell phone. Thi...

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(gentle music) - [Narrator] It's known as Earth's evil twin. - Venus gives us a glimpse into both our past and our future, a past where water formed and perhaps life arose before it d...

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Karen Alofs: I think it’s important to realize that fish, like many other species, are adapting to climate change and that we don’t yet fully understand the consequences. I became an ecologist becaus...

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Imagine an entire network of flying cars zooming around at 2,000 meters above our congested city streets. Your morning commute would be a lot different up there: you could travel at higher speeds, ...

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Last month, Tesla made one of the biggest price drops in TV history slashing its model y by nearly 20%. The move sent shockwaves through the auto industry. A few weeks later, Ford made...

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This is the Sun. And this is a neutron star. But don't let its size fool you. Neutron stars are massive gravitational monsters, and orbiting one wouldn't end up well for our planet....

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(lighthearted music) - You know they don't tell you, "Don't lay on the bed." You're supposed to lay on the bed. - [Narrator] If you've ever visited an Ikea, you've likely encountered ...

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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...