Posted by ARJUN on Dec. 11, 2012, 3:07 p.m.
31 – In 5 billion years the Sun will run out of fuel and turn into a Red Giant.
32 – Giraffes often sleep for only 20 minutes in any 24 hours. They may sleep up to 2 hours (in spurts – not all at once), but this is rare. They never lie down.
33 – There are 60,000 miles of blood vessels in the human body.
34 – An individual blood cell takes about 60 seconds to make a complete circuit of the body.
35 – On the day that Alexander Graham Bell was buried the entire US telephone system was shut down for 1 minute in tribute.