TIME The Brief

#TheBrief: The Air Bag Recall That’s Affecting Millions of Cars

Exploding air bags made by Takata Corporation

Exploding air bags have led to one of the biggest auto recalls in history, one that’s five times larger than GM’s ignition-switch fiasco. How did this happen?

Several large automakers including BMW and Honda have used the air bags, made by Japanese company Takata Corporation, the largest supplier of air bags parts in the world. Now they have had to recall millions of cars after the defective driver’s-side air bags have been blamed for at least five deaths and more than 100 injuries in the past decade.

Watch #TheBrief to find out more about the recall.

TIME The Brief

#TheBrief: How Ebola and Fungus May Speed Up the Chocolate Shortage

China's growing demand for chocolate may also be contributing

A recent chocolate shortage has seen cocoa farmers unable to keep up with the public’s insatiable appetite for the treat–and the world’s largest chocolate producers, drought, Ebola and a fungal disease may all be to blame.

Meanwhile, China’s demand for chocolatey goodness has more than doubled in the past ten years, and the country is the fastest growing sector for confectionery products in the world.

Watch #TheBrief to find out what’s being done to save chocolate and what the consequences of this shortage might be for you.

TIME Explainer

Daylight Saving Time Ends This Weekend and Here’s What That Means

How to prepare for your annual encounter with confusion

Daylight Saving Time ends Sunday at 2 a.m., which means that we’re all going to spend a few minutes scratching our heads trying to figure out whether we’re gaining or losing an hour of sleep.

Save yourself the trouble and let TIME break it down for you. Our clocks change Sunday morning when we set the time back one hour. (Remember, spring forward and fall back.) That means we’ll all get one extra hour of shuteye Saturday night and feel nice and refreshed on Sunday. Also, the sun will set one hour earlier each day, so good luck catching daylight after work. Mornings will be much brighter, though.

Daylight Saving Time for 2014 started started on March 9, when we all lost an hour of sleep. And it will start again on March 8 of 2015, when we’ll give back the hour of sleep we gained on Sunday.

Watch the video above to learn more about the history of Daylight Saving Time.

TIME how things work

How 3D Printers Work

See how 3D printers create everything from guns to chocolate.

3D printers were invented by Chuck Hull as far back as 1983, but they recently rose to prominence after being used to make common items ranging from guns to body parts. But how do they work?

Using a process known as “additive manufacturing,” 3D printers can take a number of different materials from metal to plastic and even chocolate to create every piece of the final structure from scratch, with no material left over.

Hull sees a bright future for 3D printing, saying it’ll be a $4.5 billion business by the end of the decade.

TIME Explainer

Admit It: Daylight Saving Time Is This Weekend And You Don’t Know What It Is, Either

TIME explains Daylight Saving Time

Correction appended Nov. 2, 8:42 am ET

Daylight Saving Time is one of the universe’s great mysteries, like the afterlife, or who really killed JFK. It was one of the things you assumed you’d never understand. But it’s time for TIME to break down Daylight Saving Time.

First of all, it ends this weekend (Saturday night going into Sunday, to be exact), having started way back in March. And since we spring forward and fall back, we’ll all be getting one extra hour of sleep Sunday morning. Hooray!

Daylight Saving Time dates back to the good ole’ days when we did everything based on when we had sunlight. It got more serious when Benjamin Franklin decided to be “that guy,” suggesting we all get up earlier to save money on candles. Thanks, Benji. It was a major blow to all the unhappy, unhealthy, and unwise people who love to snooze.

The practice wasn’t formally implemented until World War I, when countries at war started setting their clocks back to save on coal. Daylight Saving was repealed during peacetime, and then revived again during World War II. More than 70 countries currently practice Daylight Saving Time, because they think it saves money on electricity (in the U.S., Arizona and Hawaii have opted out).

But studies show that Daylight Saving Time actually results in a one percent overall increase in residential electricity. And that it messes with sleeping patterns. Oh, and also it may cause heart attacks, according to the American Journal of Cardiology. So it’s no surprise that more and more countries are reevaluating whether to hold on to this relic from the past.

But like all great mysteries, the answers only beget more questions: Does your iPhone automatically update for Daylight Saving Time?

Actually, yes, it does.

Correction: This article was originally updated without revising the date Daylight Savings Time ends.

Your browser, Internet Explorer 8 or below, is out of date. It has known security flaws and may not display all features of this and other websites.

Learn how to update your browser