Tennis

World’s Most Dangerous Stairways to Heaven

Chinese tourist officials in Linzhou, Henan province, hope the stairs will give visitors an actual experience of the mountain range. They wanted to boost tourism by installing a huge...

Brown Gerygone Call like what-is-it

Brown Gerygone Call consists of Three-to five-syllable soft twitter, diddle-it-did-dit, around the same pitch. That is repeated rapidly...

Pale rockfinch (Carpospiza brachydactyla)

Pale Rockfinch is also known as Pale Rock Sparrow and Pale Petronia. This finch is 14 cm in...

Nile Valley, Geological Evolution

Nile Valley, Geological Evolution Nile River (6670km) stretches across 34 degrees of latitude, from two degrees south of the...

What is Difference Between a Butterfly and Moth?

What is the Difference Between a Butterfly and Moth? One of the most common questions any lepidopterist is asked...

Jeff Borowiak: The Unsung Hero of 1970s Tennis

Jeff Borowiak born on September 25, 1949, in Berkeley, California, United States. Jeffrey Borowiak arrived in Cologne for his first tournament as a World...

Bill Tilden: The Greatest Tennis Player

While Bill Tilden and I were usually at odds," says the author, George Lott, I gained a very healthy respect for him on the...