Mar 31, 2017
Water is concrete's ultimate enemy. Although concrete withstands constant beatings from cars and trucks, water can break it down, pool on its surface and infiltrate the tiniest cracks. Add freezing and thawing cycles, and it's no wonder roads need frequent repairs.
2. 08:19 AM
Climate-friendly labriculture depends on an energy revolution
3. 07:58 AM
Spherical display brings virtual collaboration closer to reality
4. Feb 18, 2019
Lithium-air batteries can store energy for cars, houses and industry