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welcome to the cotkey ride home for mond, March 22nd, 2021. I'm Jackson Bird.

The AI built to tell pastries apart that's now being used for cancer research.

It turns out a large portion of Mars's water may be hiding in the planet's crust.

And if one of your online orders got lost, it may now be lurking at the bottom of the ocean.

Here are some of the cool things from the news today.

There's a bakery chain in Japan that offers dozens of different kinds of pastries,

danishes, donuts, croissants, sandwiches.

You go down a cafeteria-style line, pick what you want, put it on a tray,

and when you get to the register to pay, you put your tray on top of a backlit rectangle.

A screen shows an image of your tray with bright green lines around each

item. It recognizes each item from among the dozens of pastries on offer at that bakery and then

correctly charges you. How does it do that? You'd imagine it's some kind of relatively recent

development in deep learning and neural networks, but in fact,

it's a more homegrown technology that got its start in 2007, led by a man named Hisashi Kambi.

The New Yorker recently profiled Kambi's work with the bakery and how the technology he developed

is now being deployed in many other sectors, including cancer research.

So let's start with the bread problem.

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