Rank #1: 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 #2: Light From Sand
LEDs are small lights that come from a material that is under your feet at the beach--sand. The uses of LEDs are almost as numerous as the grains of sand that make them.
Dec 27 2015
Rank #3: Why Snowflakes Have Six Sides
Snowflakes have six sides. The answer to why can be found in your local supermarket in a stack of oranges.
Dec 20 2015
Rank #4: 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 #5: 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 #6: 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 #7: 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 #8: 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 #9: The Science Behind the Gateway Arch
The Gateway Arch is a beautiful example of the marriage between materials and mathematics. The secret behind this monument's longevity is revealed.
Jan 10 2016
Rank #10: 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 #11: 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 #12: 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 #13: 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 #14: 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 #15: How Lakes Create Blizzards
Cold dry air from Canada traveling over clear lakes are the ingredients for a miserable winter.
Jan 17 2016