To push or to pull? How many-limbed marine organisms swim — ScienceDaily

When you think of swimming, you probably imagine pushing through the water — creating backwards thrust that pushes you forward. New research at the Marine Biological Laboratory (MBL) suggests instead that many marine animals actually pull themselves through the water, a phenomenon dubbed “suction thrust.” The study, published in Scientific Reports, found that small marine […]

Could we ever pull enough carbon out of the atmosphere to stop climate change?

Nature has equipped Earth with several giant “sponges,” or carbon sinks, that can help humans battle climate change. These natural sponges, as well as human-made ones, can sop up carbon, effectively removing it from the atmosphere.  But what does this sci-fi-like act really entail? And how much will it actually take — and cost — […]

14 wild edibles you can pull right out of the ocean

Two pots full of Florida shrimp, fresh from the cast net. (Bob McNally/) This story was originally featured on Field & Stream. The bounty of the marine and brackish water environment is astounding, with delicious meals made available from foraging a staggering variety of natural items, often ignored by anglers focused on just catching fish. […]

A controllable membrane to pull carbon dioxide out of exhaust streams

Credit: CC0 Public Domain A new system developed by chemical engineers at MIT could provide a way of continuously removing carbon dioxide from a stream of waste gases, or even from the air. The key component is an electrochemically assisted membrane whose permeability to gas can be switched on and off at will, using no […]

The military wants one-hour global delivery. SpaceX thinks it can pull it off.

A SpaceX rocket seen launching from Cape Canaveral in Florida. (SpaceX/) On June 8, 1959, the Navy launched a rocket carrying 3,000 letters from the submarine USS Barbero, floating off the coast of Florida. “Before man reaches the moon,” Postmaster General Arthur A. Summerfield predicted, “mail will be delivered within hours from New York to […]