NPR Politics presents the Lunchbox List: our favorite campaign news and stories curated from NPR and around the Web in digestible bites (100 words or less!). Look for it every weekday afternoon from now until the conventions.

Convention Countdown

The Republican National Convention is in 4 days in Cleveland.

The Democratic National Convention is in 11 days in Philadelphia.

NASA has released the first picture of Jupiter taken since the Juno spacecraft went into orbit around the planet on July 4.

The picture was taken on July 10. Juno was 2.7 million miles from Jupiter at the time. The color image shows some of the atmospheric features of the planet, including the giant red spot. You can also see three of Jupiter's moons in the picture: Io, Europa and Ganymede.

The Senate is set to approve a bill intended to change the way police and health care workers treat people struggling with opioid addictions.

My husband and I once took great pleasure in preparing meals from scratch. We made pizza dough and sauce. We baked bread. We churned ice cream.

Then we became parents.

Now there are some weeks when pre-chopped veggies and a rotisserie chicken are the only things between us and five nights of Chipotle.

Parents are busy. For some of us, figuring out how to get dinner on the table is a daily struggle. So I reached out to food experts, parents and nutritionists for help. Here is some of their (and my) best advice for making weeknight meals happen.

"O Canada," the national anthem of our neighbors up north, comes in two official versions — English and French. They share a melody, but differ in meaning.

Let the record show: neither version of those lyrics contains the phrase "all lives matter."

But at the 2016 All-Star Game, the song got an unexpected edit.

At Petco Park in San Diego, one member of the Canadian singing group The Tenors — by himself, according to the other members of the group — revised the anthem.

School's out, and a lot of parents are getting through the long summer days with extra helpings of digital devices.

How should we feel about that?

Police in Baton Rouge say they have arrested three people who stole guns with the goal of killing police officers. They are still looking for a fourth suspect in the alleged plot, NPR's Greg Allen reports.

"Police say the thefts were at a Baton Rouge pawn shop early Saturday morning," Greg says. "One person was arrested at the scene. Since then, two others have been arrested and six of the eight stolen handguns have been recovered. Police are still looking for one other man."

A 13-year-old boy is among those arrested, Greg says.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

After an international tribunal invalidated Beijing's claims to the South China Sea, Chinese authorities have declared in no uncertain terms that they will be ignoring the ruling.

The Philippines brought the case to the Permanent Court of Arbitration in The Hague, objecting to China's claims to maritime rights in the disputed waters. The tribunal agreed that China had no legal authority to claim the waters and was infringing on the sovereign rights of the Philippines.

Donald Trump is firing back at Supreme Court Justice Ruth Bader Ginsburg after she disparaged him in several media interviews. He tweeted late Tuesday that she "has embarrassed all" with her "very dumb political statements" about the candidate. Trump ended his tweet with "Her mind is shot - resign!":

Pages

To Maximize The Joy Of Eating Candy, Apply Physics

Sep 5, 2012
Originally published on September 19, 2012 4:12 pm

When it comes to candy, most people fit into two camps — either you savor your candy, or you devour it right away.

If you're a "savorist," you'll be happy to learn that certain spherical candies can take up to a half-hour to dissolve if you don't bite into them, at least according to some research recently submitted to the journal Physics Education.

The study, "Sticky physics of joy: On the dissolution of spherical candies," by a family of University of Graz researchers in Austria, is hardly the usual science journal fare. It caught our eye because it promises that "serious questions on the optimal strategy of enjoying a candy will be addressed, like whether it is wise to split the candy by breaking it with the teeth or not."

We know from years of Halloween-related experience that with most candies, sadly, once you pop one in your mouth, it starts dissolving. Or, as the paper puts it, "The time of joy due to tastiness is quite finite." But we never really knew how it worked.

To see how the candies dissolve, the researchers plopped some spherical candies in a bowl of slightly agitated tap water, which has a similar pH to saliva, and observed the effects from a camera mounted above the bowl.

They discovered that the whole candy dissolved at a steady pace over about 25 minutes (check out the charts.)

Now, these were tiny spherical candies — German candies called Liebesperlen, whose name translates as sugar pearls or literally, "love pearls," says researcher Andres Windisch, a PhD student who normally works on continuum methods in quantum field theory. But you might be able to recreate the results with Gobstoppers or Fireballs or whatever sweet, homogeneous spheres you've got on hand. (Note: This won't work with M&Ms — they're not spheres, nor are they homogenous!)

The way the candy dissolved was a surprise to the researchers. "We expected the thing to vanish exponentially," says Windisch. But what they found was that it actually decreased linearly. "The linear decrease seems to be the general behavior for surface-driven phenomena like the mass-decrease through the surface of the candy in this case," he tells The Salt in an email.

In other words, the radius of the candy got smaller at a constant rate, explains the American Physical Society's Buzz Blog.

The idea for the study was born out of a conversation at home. Retired medical physics professor Herbert Windisch had a cold and was using candies to ease his throat pain, according to his son, Andreas. They began wondering how a candy vanishes over time.

"It was more like a Sunday afternoon project," says Andreas Windisch. "When we got the results, we decided to put it into a paper and send a draft to a educational journal to use it as a nice example for school classes," he says.

Of course, you can eat your candy any way you want — even if you like to chew it — but it lasts longer if you don't break it up, the researchers note:

"Even though we now know how candies dissolve over time, we stress that the best thing to do when eating a candy is to forget about these considerations, since they draw your attention away from what candies are made for: enjoyment."

Copyright 2012 National Public Radio. To see more, visit http://www.npr.org/.