Jazz is a form of music that originated in southern UNITED States in the late 19 th century, as a
development of the songs and spirituals of Afro-American slaves, with melodies that incorporate both
African and European music , It is a strongly rhythmic form of music, incorporating elements of ragtime,
the blues and folk music. One popular early form came from New Orleans and was sometimes...
According to an ancient Greek myth, the god Pan invented the first musical instrument – the pipes that
are named after him – after he accidentally breathed heavily through old reeds beside a river and
produce a wail. He so liked the sound that he broke the reeds off and tied them together. Because the
reeds were different lengths they produce different notes. Although this is a myth,...
The ability to make a ball swerve through the air rather than follow a straight line is a valuable one in
many sports, whether as a pitcher in baseball, a spin bowler in cricket or a footballer taking a penalty.
The curve occurs because of the ‘Bernoulli effect’, which was discovered by scientist Daniel Bernoulli.
When the player wants to make the ball follow a curve through the air,...
Stars and Stripes - also called ‘Old Glory’, or ‘Star-spangled Banner’, is the flag of the United States of
America. It consist of white stars (50 from July 4, 1960) on a blue background, with a field of 13 alternate
stripes, 7 red and 6 white. The 50 stars stand for the 50 states of the Union, and the 13 stripes stand for
the original 13 states that signed the Declaration of Independence....
The sundial was one of the earliest devices for measuring time. But it can work only on a day with
plenty of sunlight. Early peoples also used ropes with knots tied at regular intervals. In the ninth century
candles were marked with regularly spaced lines, but this was not very accurate as a draught could
cause the candle to burn more quickly. When burned, such devices measured time....
If we think about different types of clocks and watches, we associate some of them with different
countries: grandfather clocks and marine chronometers from England, cuckoo clocks from both
Germany and Switzerland, precision-engineered jeweled watches from Switzerland, too, and digital
watches from countries in south-east Asia such as Japan. Watches are very important to the Swiss
economy...
