explainer

Jun 19, 2013

How Do Bees Make Honey? (It’s Not Just Bee Barf)

Last weekend, my daughter asked me how bees made honey, and I realized that I didn’t know the answer. How do bees make honey? I did some homework, and can now explain it to her – and to you. Different honey bees have different jobs. Some of these bees are “forager” bees, which collect nectar… 

Jun 17, 2013

Cretaceous Cold Case No. 4: Graveyard Shift

This is the fourth post in a series called “Cretaceous Cold Cases” in which the science of taphonomy, or prehistoric forensics, is explained by fascinating cases from the files of Terry “Bucky” Gates, a research scientist with a joint appointment at NC State and the North Carolina Museum of Natural Sciences. The graveyard shift in Madagascar… 

Jun 3, 2013

That Four-Leaf Clover You Found May Not Be a Four-Leaf Clover

Are four-leaf clovers becoming more common? That was the question put to me by a reader recently. Apparently her kids are finding four-leaf clovers on a daily basis as they walk home from school. What gives? While it is possible that her children are simply amazing four-leaf clover finders, it’s more likely that the “four-leaf… 

May 16, 2013

Cretaceous Cold Cases No. 3: Duck(bill) Amuck

This is the third post in a series called “Cretaceous Cold Cases” in which the science of taphonomy, or prehistoric forensics, is explained by fascinating cases from the files of Terry “Bucky” Gates, a research scientist with a joint appointment at NC State and the North Carolina Museum of Natural Sciences. One brisk fall day in… 

May 1, 2013

Cretaceous Cold Case No. 2, Part 1: It’s a Trap?

This is part one of the second post in a series called “Cretaceous Cold Cases” in which the science of taphonomy, or prehistoric forensics, is explained  using fascinating cases from the files of Terry “Bucky” Gates, a research scientist with a joint appointment at NC State and the North Carolina Museum of Natural Sciences. Part 2… 

Apr 16, 2013

Cretaceous Cold Cases No. 1: A Case With Legs

This is the first post in a series called “Cretaceous Cold Cases” in which the science of taphonomy, or prehistoric forensics, is explained and exemplified by fascinating cases from the files of Terry “Bucky” Gates, a research scientist with a joint appointment at NC State and the North Carolina Museum of Natural Sciences. Summer, 2001. It… 

Apr 11, 2013

New Flu Review 2: How Do You Measure Lethality?

Editor’s Note: You may hear about fatality rates or percentages when media report on new and dangerous flu strains, and often times the reports are conflicting. In this post, Barrett Slenning, an epidemiologist at NC State, explains how these fatality rates are calculated, and why the numbers may fluctuate. A previous post on H7N9 flu can… 

Apr 10, 2013

New Flu Review

The new strain of avian flu – known as H7N9 – has only been on scientists’ radar for a couple of weeks, but that’s been long enough to raise some questions.  NC State epidemiology expert Barrett Slenning, who spends a lot of time looking at the ways in which pathogens transfer from animals to people, was… 

Jan 28, 2013

Why Doesn’t Plastic Dry as Easily as Glass in the Dishwasher?

An Abstract reader recently sent me this question: “Why doesn’t plastic dry in the dishwasher? Or why doesn’t it dry as quickly/easily as glass? This drives me totally nuts.” Good question! That phenomenon drives me nuts too. The answer appears to have a lot to do with the amount of energy (in the form of… 

Nov 8, 2012

Stick It to Cankerworms

Editor’s Note: This is a guest post by Steve Frank, an assistant professor of entomology at NC State. You can learn more about the Cankerworm Project here, and keep up with Steve’s entomological pest alerts and updates by following @OrnaPests on Twitter. In spring 2012, a cankerworm outbreak occurred in many North Carolina cities. Students became… 

Jul 20, 2012

What’s the Deal With Seedless Watermelons?

Seedless watermelons aren’t seedless. They have those little white seeds that don’t have hard black shells, like the seeds in seeded watermelons. How do they do that?  Glad you asked! In seeded watermelons, the seed develops its hard seed coat (or testa) once it is fertilized. But, because seeds in seedless watermelons cannot be fertilized,… 

Jul 3, 2012

The Chemistry of Fireworks

Editor’s Note: This is a guest post by Steve Townsend, director of communications in NC State’s College of Physical and Mathematical Sciences. Just in time for the 4th of July! As they have for well over 200 years, the skies over cities and towns across the country will explode in celebration this July 4. While there’s… 

Jun 8, 2012

Mosquitoes, Ticks and Horse Flies, Oh My!

The warm weather of summer often draws us out of the house for a trip to the pool, a hike in the woods or (less fun) to mow the lawn. And all that time outdoors means we’re more aware of the ticks, mosquitoes, horse flies and other pests that are also more active in warm… 

Apr 10, 2012

Know Your Enemy: Cockroaches

Most people think cockroaches are disgusting. And if you’ve ever turned on a kitchen light, to find them skittering for dark corners, you probably agree (reference: my first apartment). But of the thousands of species out there, only a few can be considered pests. There are well over 4,000 described (i.e., named) species of cockroach… 

Apr 6, 2012

Know Your Enemy: Termites

Termites are fascinating insects, and not just because they can turn your front porch into mush. For example, did you know that many researchers have concluded that termites are actually social cockroaches? Whether you group them under the order Blattodea or Isoptera (and entomologists do both), there are more than 2,500 species of termites globally,…