Hi, Ira here. Last month, as we looked back on the year at a live event, we invited some friends to share their memorable reporting stories from 2019, things that maybe didn't make the front pages. Here's what they had to say, recorded December 2019 at Caviatt in New York City. Let's take a listen.

This is Science Friday. I'm Ira Flato coming to you from the Caviott Theater in New York City. Let's take a listen. This is Science Friday. I'm Ira Flato coming to you from

the caveat theater in New York City. Joining us tonight are three science journalists, reporters,

and communicators who have achieved great things this year, and they have brought with them tonight

a story to share about something they reported this year and why it stuck with them. It's a chance

for them to tell their tales in a new light from a different perspective or give us an update

since they left off. Okay, first up, we have the story of how the world changed forever.

This may, but many of you may not have noticed the

change at all. That story is the host of Reset, a podcast from Recode by Vox, about how high tech is

changing our lives. Please welcome. Ariel Duem Ross. Come on out.

Thank you, Ira.

And thank you, everybody, for being here tonight.

I'm a big fan of obscure scientific dates and anniversaries.

And one of my favorite such date is May 20th.

Because May 20th is World Metrology Day. Now, and I do mean metrology, not meteorology, the study of weather. I mean metrology, the study of measurement.

And World Metrology Day is a day intended to honor that field. And I would say that

2019 was a pretty big year. I would even argue that it was the biggest

for metrologists because 2019 is the year that the definition of the kilogram was changed

forever. Fun fact. And more than that, 2019 was the year that with that change, metrologists achieved a goal

that they had set out for themselves back in the 18th century. See, the slogan for

metrology is at all time, at all people, which means for all times, for all people in French.

I'm French Canadian. I'm going to milk it every day that I possibly can,

...