How massive can black holes get?

Without the light pressure from nuclear fusion to hold back the mass of the star, the outer layers compress inward in an instant. The star dies, exploding violently as a supernova.

Team uses smart light, shadows to track human posture

A Dartmouth College team has created the first light-sensing system that reconstructs human postures continuously and unobtrusively, furthering efforts to create smart spaces in which people control their environment with ...

What is the Oort Cloud?

For thousands of years, astronomers have watched comets travel close to Earth and light up the night sky. In time, these observations led to a number of paradoxes. For instance, where were these comets all coming from? And ...

Environmental impacts of land use have been underestimated

Environmental impacts of land use have been widely assessed in recent years. In particular, carbon footprints of food and bioenergy production have been studied. Environmental impact assessments are used in decision-making ...

Sustainability matters, even in complex networks

You're driving down the highway in your Honda Civic. You press the pedal to the metal and the speedometer flips to 90 as you torque into the fast lane. How much effort have you, and the car, expended?

Why employees bend workplace confidential information rules

Researchers from Simon Fraser University's Beedie School of Business have found that organizations implementing rules that govern confidential information (CI) can make it difficult for employees to fulfill their roles – ...

page 6 from 12