Dolphins Have Names

It turns out that there’s strong evidence to suggest that at least one kind of dolphin sound, studied extensively over the past decade, does function as a kind of referential symbol. Dolphins use distinct “signature whistles” to identify and call to one another.  Each dolphin is thought to invent a unique name for itself as a calf and to keep […]

Read more

How the moon was made

How the moon was made

People always wonder how the moon was made. The birth of the planets 4.5 billion years ago was extremely violent. They grew to full size by absorbing rival planet embryos in a series of titanic collisions—one of which probably gave Earth its moon (below). The moon’s large size, low density, and other features suggest that it emerged from an explosion […]

Read more

CAN A HURRICANE BE DEACTIVATED?

CAN-A-HURRICANE-BE-DEACTIVATED

We all know that hurricanes are very powerful and destructive.  Some scientists think that we can try to control them by slowing, stopping or weakening them with pumps.  The pumps would bring the colder water to the surface from deep into the ocean waters to decrease the heat that hurricanes thrive on.  This system would be very costly transporting the […]

Read more
1 2 3 455