All Stories by Julie Rehmeyer
- Math
Cutting a Pie Is No Piece of Cake
Mathematicians find that slicing a pie into fair pieces is harder than divvying up a sheet cake. The problem is that pie cuts are radial, not parallel.
- Math
Ancient Islamic Penrose Tiles
Medieval Islamic artisans developed a process for creating elaborate, nonrepeating patterns now associated with Penrose tiles.
- Math
Ancient Islamic Penrose Tiles
Medieval Islamic artisans developed a process for creating elaborate, nonrepeating patterns now associated with Penrose tiles.
- Humans
Fractal or Fake?
A physicist who uses fractals to investigate the authenticity of some paintings attributed to Jackson Pollock finds that the works may be fake. But is the flaw in the paintings or in the fractal analysis?
- Health & Medicine
Salmon Safety
Scientific advice on the subject of how much salmon it is safe to eat has been confusing.
- Computing
Digital Fingerprints
New methods to identify Internet users by their behavior can uncover criminals online, but these techniques may also track millions of innocent users.
- Health & Medicine
Drinking During Pregnancy Emerges As a Possible Male-Infertility Factor
Alcohol consumption during pregnancy increases the risk of undescended testicles in boy babies, and it may contribute to later fertility problems even in boys born without the defect.
- Paleontology
Mammals started flying when birds did
The first gliding mammal winged through forests at least 70 million years earlier than scientists had previously presumed, a new fossil shows. The specimen dates from about 150 million years ago, during the time when birds were developing flight. ANCIENT GLIDER. Volaticotherium antiquus was gliding through ancient forests 150 million years ago. The creature weighed […]
- Math
A Fair Slice: New method makes for equitable eating
A new method for cutting cake yields slices that make everyone equally happy.
- Health & Medicine
Express delivery for cancer drugs
A new drug-delivery method has dramatically reduced tumors in experiments conducted with mice.
- Agriculture
Wheat gone wild
Researchers have identified a gene responsible for boosting the protein, iron, and zinc content of some varieties of wild wheat by 10 to 15 percent.
-
Leggy lizards adapt fast
In response to a new predator, lizards on several Caribbean islands underwent selection first for long legs and then for short legs.
