Cratons are fascinating yet enigmatic geological formations. Known to be relatively stable portions of the Earth’s continental crust, cratons have remained largely unchanged for billions of years. Although cratons have survived many geological events, some are undergoing decratonization—a process characterized by their deformation and eventual destruction.
The fastest animal on land is the cheetah, capable of reaching top speeds of 104 kilometers per hour. In the water, the fastest animals are yellowfin tuna and wahoo, which can reach speeds of 75 and 77 km per hour respectively. In the air, the title of the fastest level flight (excluding diving) goes to the white-throated needletail swift, at more than 112 km per hour.
A new statistical model could help to address the age-old question of how to price non-physical, intangible goods like data, say scientists.
Why is human culture—the shared body of knowledge passed down across generations—so much more powerful than animal cultures?
The theory of special relativity is rife with counterintuitive and surprising effects, the most famous of which are length contraction and time dilation. If an object travels at a relative speed, which is a non-negligible fraction of the speed of light, with respect to an observer, the length of the object in the travel direction will appear shorter to the observer than it actually is in the object’s rest frame.
This article explores how AI is revolutionizing digital companionship and why raising virtual pets together might be the future of social connection.
The treatment, given to four people with damaged corneas, seems safe but needs to be tested in larger trials.
The structure, too deep to pose a hazard to vessels, was found as scientists were gathering data to better map an Arctic shipping route.
The first object in 4 dimensions has been printed, and its beyond our capacity of comprehension: You won’t believe how it looks like.
The future of wireless technology—from charging devices to boosting communication signals—relies on the antennas that transmit electromagnetic waves becoming increasingly versatile, durable and easy to manufacture. Researchers at Drexel University and the University of British Columbia believe kirigami, the ancient Japanese art of cutting and folding paper to create intricate three-dimensional designs, could provide a model for manufacturing the next generation of antennas.
Recently published in the journal Nature Communications, research from the Drexel-UBC team showed how kirigami—a variation of origami—can transform a single sheet of acetate coated with conductive MXene ink into a flexible 3D microwave antenna whose transmission frequency can be adjusted simply by pulling or squeezing to slightly shift its shape.
The proof of concept is significant, according to the researchers, because it represents a new way to quickly and cost-effectively manufacture an antenna by simply coating aqueous MXene ink onto a clear elastic polymer substrate material.
