Business

Instacart CEO says online grocery shopping has room to grow

When the pandemic hit the U.S. last year, grocery delivery company Instacart suddenly became a lifeline for millions of consumers. Sales volumes skyrocketed; in one month, the company added 300,000 drivers to keep up with ...

Automotive

Sick of dangerous city traffic? Remove left turns

To reduce travel times, fuel consumption and carbon emissions, in 2004, UPS changed delivery routes to minimize the left-hand turns drivers made. Although this seems like a rather modest change, the results are anything but: ...

Business

Qualtrics goes public 2 years after being bought by SAP

Business software provider Qualtrics went public Thursday two years after German giant SAP bought the company for $8 billion, marking the latest achievement for the company that has become one of the crown jewels of a technology ...

Central Florida lands hub for Jetsons-like 'flying cars'

The nation's first regional hub for "flying cars" is being built in central Florida and once completed in five years, the vehicles will be able to take passengers from Orlando to Tampa in a half hour, officials said Wednesday.

Robotics

Multi-drone system autonomously surveys penguin colonies

Stanford University researcher Mac Schwager entered the world of penguin counting through a chance meeting at his sister-in-law's wedding in June 2016. There, he learned that Annie Schmidt, a biologist at Point Blue Conservation ...

Energy & Green Tech

How Salt Lake's buildings affect its climate future

Anyone who's lived or worked in old buildings knows that their heating and cooling systems can't compare to the efficiency, insulation and consistency of those in new buildings. But the quirks of old buildings' climate control ...

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Lake

A lake (from Latin lacus) is a terrain feature (or physical feature), a body of liquid on the surface of a world that is localized to the bottom of basin (another type of landform or terrain feature; that is, it is not global) and moves slowly if it moves at all. On Earth, a body of water is considered a lake when it is inland, not part of the ocean, is larger and deeper than a pond, and is fed by a river. The only world other than Earth known to harbor lakes is Titan, Saturn's largest moon, which has lakes of ethane, most likely mixed with methane. It is not known if Titan's lakes are fed by rivers, though Titan's surface is carved by numerous river beds.

Natural lakes on Earth are generally found in mountainous areas, rift zones, and areas with ongoing or recent glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers. In some parts of the world, there are many lakes because of chaotic drainage patterns left over from the last Ice Age. All lakes are temporary over geologic time scales, as they will slowly fill in with sediments or spill out of the basin containing them.

This text uses material from Wikipedia, licensed under CC BY-SA