This episode is presented by eBay.

Rob, everyone loves a deal and a bargain from time to time, don't they? Absolutely, mate. And do you know where you can grab a great deal? Talk to me. Where? The eBay app. Yes, you are correct. You didn't need to talk to me. I already knew it. I love eBay. When you're buying, you can discover loads of hidden gems. there's so many items where you think I would have never found that anywhere else.

Then when you're buying, you can discover loads of hidden gems. There's so many items where you think I would have never found that anywhere else. Then when you're selling, it's so simple and most

importantly, free. It's free, Rob. When it's this easy to sell for free and there's great deals

on things you love. You can't help but say when it's eBay. It excludes vehicles and business

sellers. This is another in our series of

coronavirus episodes of Scientific American Science Talk posted on March 23, 2020. I'm Steve

Murski. In this two-part episode, our contributing editor, W. Wade Gibbs, in Washington State,

a state hit early and hard by COVID-19,

reports on scientists' fast-evolving understanding of this new coronavirus and the probable trajectory of this pandemic.

Today in part one, he focuses on why the new coronavirus is spreading so quickly and is so

difficult to control. Check back in tomorrow for part two when Gibbs looks at computer models

that are predicting how long we'll need to shut down large parts of society to prevent hospitals

from being overwhelmed. He also looks at how emerging tests for immunity to the virus could pose

thorny ethical issues in the months to come. Weight recorded this episode on March 22nd.

The first voice you hear, Governor Jay Inslee of Washington.

It is not rhetorical or hyperbolic.

When I say that everyone needs to change their behavior, change the way we live temporarily

if we are going to prevent significant loss of life for the people we love in the state of Washington.

And when I say everyone, I mean, frankly, everyone, because we all are

potential transmitters of this virus, and we all, to some varying degree, are potential victims

of this virus. That was Governor Jay Inslee, pleading with people in my state on March 20th to

...