Newest Lessons
Highest Rated
Most Popular
View Experts
Now Playing...episode:2006
Science
The Discovery Files
Food Plight -- The Discovery Files
  Heard 2575 times

New research conducted by the Univeristy of Washington and Stanford University shows that a rapidly warming climate is likely to seriously damage crop production within the tropics and subtropics by the end of this century.


More From This Expert...
Science
The Discovery Files
Show all from this expertBlindsided -- The Discovery Files
Rate this Lesson  Heard 4816 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
People who have been blind from birth make use of the visual parts of their brain to refine their sensation of sound and touch, according to an international team of researchers led by neuroscientists at Georgetown University Medical Center.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertTell and Show -- The Discovery Files
Rate this Lesson  Heard 2740 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Cognitive psychologists at the University of Pennsylvania and University of California have shown that an image displayed too quickly to be seen by an observer can be detected if the participant first hears the name of the object.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertUncommon Sense -- The Discovery Files
Rate this Lesson  Heard 2458 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Researchers at Purdue University have developed a potential new tool for medical diagnostics, testing food and water for contamination, and crime-scene forensics.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertCheek Check -- The Discovery Files
Rate this Lesson  Heard 2661 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Engineers and physicians from NorthShore University Health System have developed a method to detect lung cancer by merely shining diffuse light on cells swabbed from patients' cheeks. In their study, the analysis technique was able to differentiate individuals with lung cancer from those without.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertEmotional Recall -- The Discovery Files
Rate this Lesson  Heard 2491 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Cornell University researchers find that emotions can alter a child's memory and that these distortions could directly impact court cases by affecting decisions made about the reliability of a child witness.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertSpit Take -- The Discovery Files
Rate this Lesson  Heard 2719 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Researchers have discovered why strands of some fluids containing polymers form beads when stretched, findings that could be used to improve industrial processes and for administering drugs.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertGot Your Bac -- The Discovery Files
Rate this Lesson  Heard 2539 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
While the ways in which the cells of drug resistant bacteria become resistant are understood at the cellular level, until now, the bacteria's survival strategies at the population level remained unclear. A new study at Boston University and Harvard University reveals that a surprisingly small percentage of bacteria actually become highly resistant supermutants. In fact, most of the bacteria in their study survived without being resistant to the effective dose of antibiotics in the environment.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertWaste Treatment Plant -- The Discovery Files
Rate this Lesson  Heard 2487 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Isolating a gene that allows a type of fern to tolerate high levels of arsenic, Purdue University researchers hope to use the finding to create plants that can clean up soils and waters contaminated by the toxic metal.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertJust Chillin' -- The Discovery Files
Rate this Lesson  Heard 2466 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
New findings from the Fred Hutchinson Cancer Research Center may help explain the mechanics behind the widely documented phenomenon of living creatures being totally frozen and then successfully brought back to life.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertSlice of Life -- The Discovery Files
Rate this Lesson  Heard 2683 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Princeton University scientists may have discovered the oldest fossils of animal bodies. These findings push back the clock on the scientific world's thinking regarding when animal life appeared on Earth.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertWheel Deal -- The Discovery Files
Rate this Lesson  Heard 2700 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
While the evolution from the Neolithic stone wheel to the sleek wheels of today's racing bikes can be seen as the result of human ingenuity, it also represents how animals, including humans, have come to move more efficiently over millions of years on Earth, according to a Duke University engineer.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertBlow Flies -- The Discovery Files
Rate this Lesson  Heard 3524 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
A Caltech biologist and his research team have identified how the antennae of fruit flies process the feeling of wind and then how the flies respond by standing completely still.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertLaptop Learning -- The Discovery Files
Rate this Lesson  Heard 2539 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Despite the distraction potential of laptops in college classrooms, research from the University of Michigan shows that they can actually increase students' engagement and learning.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertSponge Bath -- The Discovery Files
Rate this Lesson  Heard 2603 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
When loaded with an anticancer drug, a delivery system based on a novel material called nanosponge is three to five times more effective at reducing tumor growth than direct injection.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertBuy Buy Blues -- The Discovery Files
Rate this Lesson  Heard 2912 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
According to a Cornell University professor of psychology, consumers found that satisfaction with experiential purchases -- from massages to family vacations -- starts high and increases over time. In contrast, spending money on material things feels good at first, but actually makes people less happy in the end.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertGrowth Light -- The Discovery Files
Rate this Lesson  Heard 2746 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Researchers have developed a way to enhance how brain tumors appear in MRI scans and during surgery, making the tumors easier for surgeons to identify and remove.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertGlacial Globe -- The Discovery Files
Rate this Lesson  Heard 2806 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Geologists at Harvard University found evidence that sea ice extended to the equator up to 716.5 million years ago, bringing new precision to a snowball Earth event long suspected to have taken place around that time.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertLetter Carrier -- The Discovery Files
Rate this Lesson  Heard 2954 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Mayo Clinic neuroscientists have demonstrated how brain waves can be used to type alphanumerical characters on a computer screen. By merely focusing on the letter q in a matrix of letters, for example, that q appears on the monitor.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertHooked On Photonics -- The Discovery Files
Rate this Lesson  Heard 2964 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Purdue University researchers have developed a miniature device capable of converting ultrafast laser pulses into bursts of radio-frequency signals, a step toward making wires obsolete for communications in homes and offices of the future.
1:30   Play    Download
Science
The Discovery Files
Show all from this expertOn The Fly -- The Discovery Files
Rate this Lesson  Heard 2810 times

Rate Lesson 1/5Rate Lesson 2/5Rate Lesson 3/5Rate Lesson 4/5Rate Lesson 5/5
Using high-speed cameras and computer models, Cornell researchers have shown exactly how fruit flies maneuver through the air, and how they keep stable even when a whoosh of wind knocks them off course.
1:30   Play    Download