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Usain Bolt Has Nothing on This Cutting-Edge New Robot

Usain Bolt, the world's fastest human, has nothing on the Cheetah.

No, not the animal.

I'm talking about the four-legged robot built by the research division of the Pentagon known as DARPA. Their Cheetah robot recently clocked in at 28.30 miles per hour.

To be sure, the bot had a slight edge - it ran on a treadmill. Bolt was running on a track when he set the speed record for man at 27.78 mph.

Still, researchers say the Cheetah's new speed record shows that robots are becoming ever more agile. DARPA wants to use the bots to traverse tough terrain, like debris, ditches, and rocks.

Meantime, remember how I told you back in July about the robofish that could help save the oceans?

Next up are "coralbots." These diving ocean bots are designed to work in "swarms," like bees or ants. They may sound menacing but are being put to good use - saving the coral reefs.

Reefs are underwater living organisms essential to healthy life in the oceans. They make up some of the most diverse ecosystems in the world and do a lot to protect our shorelines. And they are in danger, not only from pollution and greenhouse gas emissions, but from overfishing, disease, agricultural runoff, a rising sea temperature, and ocean acidification.

That's why researchers in the U.K. are programming the bots to work in swarms to find coral fragments and re-cement them to the reef, restoring the structures. They will start work in the cold, deep waters off Scotland - a stretch often too challenging for humans.

Of course, these weren't the only fascinating high-tech advance I came across this month.

Here are some others that will blow you away....

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