Rank #1: Tires From Lettuce
There are 2 billion tires sold every year and each takes several gallons of oil to make it. Scientists have found an unusual source of natural rubber that is hidden in your salad.
Nov 08 2015
Rank #2: How Leaves Change Color
The secret for how leaves change color is uncovered. Find out how yellow and orange colors are made and how they are made differently from the reds and the purple colors. The best tree to see in the fall is also revealed.
Nov 01 2015
Rank #3: How Bubbles Catch Comets
Soap bubbles are not just for kids. Foams can help you from spilling your coffee and can help scientists understand the origin of our solar system.
Nov 15 2015
Rank #4: Meat Grown in a Lab
Scientists can now grow beef outside of the cow. In the not-so-distant future, you might get your burger from a beaker.
Apr 24 2016
Rank #5: Saving Monarch Butterflies
Twenty years ago, there were a billion monarch butterflies. Now, there are less than 10 percent of them left. Their disappearance is linked to a weed.
May 01 2016
Rank #6: How Plants Know Which Way Is Up
Seeds that are buried deep in the soil need to figure out which way their roots and stem should go. Ends up they have special cells to tell them what's up.
Apr 10 2016
Rank #7: How Lightning Makes Magnets
When lightning bolts zap iron minerals they make magnets called lodestones. NASA scientists coax bolts to strike rocks using a trick from Ben Franklin.
May 15 2016
Rank #8: How Animals Camouflage
Get ready to be introduced to nature's best master of disguise--the cuttlefish.
May 29 2016
Rank #9: This Is Your Brain on CTE
Boston University's Dr. Robert Stern tells us about a brain disease that has been in the news recently -- CTE.
Dec 20 2015
Rank #10: The Skinny on Fat
Our waistlines are increasing partly because of our modern diet, but also because of our Stone Age bodies. Back then, food was rare. Now? Not so much.
Jan 03 2016
Rank #11: Concussions
Concussions seem to be in the news lately. A leading expert explains what is going on in the brain during a concussion.
Feb 07 2016
Rank #12: Say Cheese, Pandemic
There are special cameras, called thermal cameras, that can detect heat. These cameras are the first defense against threats and diseases.
May 08 2016
Rank #13: Smart Shirts
In the future, you will be able to download data from your shirt, which has electronics embedded in the fabric.
May 22 2016
Rank #14: The Science of Chocolate
Chocolate is tasty chemistry. What takes weeks to prepare, takes moments to enjoy. The steps from tree to your tongue are described.
Feb 10 2016
Rank #15: How Animals Gossip
Imagine if we could talk to the animals. To do so, we will have to think about time differently.
Apr 17 2016
Rank #16: How Atoms Keep Time
We keep time by measuring repeating patterns, like a swinging pendulum or the earth's rotation. But, the best way to measure time is with atoms inside atomic clocks.
Mar 06 2016
Rank #17: Making Ketchup Hurry Up
Ketchup takes a long time to come out of the bottle. Fortunately, science has a few answers for how to help ketchup hurry up.
Jun 12 2016
Rank #18: Why is Snow White?
Water is clear, but snow is white. Light dances on the snowflake edges creating this white color.
Jan 24 2016
Rank #19: Invisibility Cloaks
Scientists have made invisibility cloaks in the laboratory. What does it take to make something invisible? A bit of brain trickery.
Mar 20 2016
Rank #20: As Sweet As Pi
Pi is the mysterious number of 3.14 that keeps our appliances running, our GPS going, and our clocks ticking. This number is pretty sweet.
Mar 13 2016