Top News
The False Security of a Ski Track
A ski track does not prove a slope is stable. Snowpack variability, rescue equipment, training and terrain choices all matter.
2026-11-12
The Mechanics of Hovering
Hummingbirds rotate their wings to produce lift on both strokes, using an insect-like technique that demands considerable energy.
2026-11-12
The Troupial That Takes a Nest
The campo troupial pairs vivid plumage with a nesting strategy that can include taking over another bird's occupied nest.
2026-11-12
Travel
How Timber Frames Hold
Timber frames can carry roof loads through fitted joints, brackets and columns, while allowing damaged parts to be replaced.
2026-11-12
The Tower's Number One
The Tower's giant number one marks a national championship, distinguishing a rare athletic achievement from other campus celebrations.
2026-11-12
When Glass Turns Sunlight Into Heat
Curved glass facades can concentrate reflected sunlight at street level. Modeling, facade design and shading can reduce the risk.
2026-11-12
Food
Raspberries and Mulberries
Raspberries form from one flower on a bramble, while mulberries develop from a cluster of flowers on a tree.
2026-11-12
The Sugar Already in Yogurt
Milk naturally contains lactose, some of which yogurt cultures convert into lactic acid. Flavors and toppings can add more sugar.
2026-11-12
The Secret of White Chocolate
White chocolate owes its pale color to the absence of nonfat cocoa solids and its melt to cocoa butter, the fat it shares with dark chocolate.
2026-11-12
Animals
The Mechanics of Backward Flight
Hummingbirds rotate their wings to produce lift on both strokes and redirect aerodynamic force to fly backward.
2026-11-12
The Brainless Art of Swimming
Jellyfish use nerve nets, sensory structures and rhythmic muscle contractions to swim and respond to their surroundings without a brain.
2026-11-12
The Well-Nourished Hunter
Hunger and hunting are related but distinct: movement can trigger a cat's pursuit even after a meal, with consequences for birds.
2026-11-12
Lifestyle
The Fruit Bowl and the Bouquet
Ripening fruit releases ethylene, which can hasten aging in sensitive cut flowers. Clean water, trimmed stems, and a cool spot also help bouquets last.
2026-11-12
Botanical Calm in the Bedroom
A restrained palette, varied pattern sizes, and controlled contrast give botanical bedrooms depth without visual clutter.
2026-11-12
Small Accents, Stronger Rooms
A neutral backdrop lets colorful accents connect a reading corner without overwhelming its chair, lighting and textiles.
2026-11-12
Art
The Calla Lily's Family Secret
Pink calla lilies share a family with philodendrons, not true lilies. Their showy spathe surrounds a spike of tiny flowers.
2026-11-12
The Quiet Power of Flowers
A yellow and white arrangement can unify a neutral room through visual hierarchy, repeated shapes, and contrasts in texture rather than matching colors.
2026-11-11
The Secret of Cosmos Blooms
A cosmos bloom combines showy ray florets and nectar-bearing disk florets, drawing pollinators to many small flowers in one visit.
2026-11-11
Science
The Secret of Spiral Arms
Spiral arms need not be fixed collections of stars. Density waves and transient structures can produce patterns despite differential rotation.
2026-11-12
Six Mysteries Beyond the Stars
Exploding stars revealed accelerating expansion, raising questions about dark energy alongside five other mysteries that challenge our understanding of the universe.
2026-11-12
Why Spiral Arms Endure
Spiral arms are patterns rather than fixed chains of stars, shaped by gravity, gas compression and star formation.
2026-11-12
Vehicle
The Secret Behind Urus Cornering
The Urus uses electrically controlled anti-roll bars to resist body lean in corners while allowing its suspension more freedom on uneven roads.
2026-11-12
The Urus Behind the Badge
The Urus shares Volkswagen Group architecture with other luxury SUVs, but its styling, powertrain and chassis tuning give it a character of its own.
2026-11-12
The Air Channels of the BMW i8
The BMW i8 uses open channels around its rear pillars to guide airflow, marrying aerodynamic purpose with a distinctive sports car silhouette.
2026-11-11
Sport
The Wide Tire Paradox
At equal pressure, a wider tire can lose less energy through deformation, but tread, construction and aerodynamics often make mountain bike tires slower on pavement.
2026-11-12
The Clay Court Serve
Clay can blunt a flat serve while rewarding spin with a higher, less comfortable bounce and more margin for error.
2026-11-12
The Art of Slowing Down on Skis
Beginners can manage speed through balanced turns, instruction, and practice on gentle slopes; leaning back makes control harder.
2026-11-12