Here are 10 of the greatest April fools day tricks of all time. 1. The Spaghetti Harvest In April, 1957 the BBC news show Panorama announced that Switzerland was enjoying a bumper spaghetti harvest. This was due to the mild winter and to the measures that had been taken to eliminate the spaghetti weevil. Swiss peasants were shown harvesting spaghetti from trees. The story was widely believed, and some viewers called the show to ask how they could grow a spaghetti tree in their gardens. 2. Instant color TV In 1962, a technician called Knell Stensson appeared on Swedish television (which at that time was in black and white only) and announced to viewers that they would henceforth be able to take advantage of a new technology to instantly transform their picture to color. He demonstrated how to do it. All the viewer had to do was stretch a nylon stocking over the screen. 3. The Islands of San Serriffe In 1977 the Guardian newspaper in England published a series of articles about a small republic in the Indian Ocean called San Serriffe, a collection of small semi-colon shaped islands, of which the two main islands were called Upper Caisse and Lower Caisse. Many readers contacted the newspaper to ask how they could book a holiday there. 4. The Alabama Value of Pi In 1998 it was announced that the Alabama State Legislature had voted to change the value of the number pi (the ratio of the circumference and diameter of a circle) from 3.1412… to the Biblical value of 3, and that it would be mandatory to use pi = 3 in all state schools. The news spread very quickly across the internet, causing many angry protests. 5. The Left Handed Whopper Also in 1998 Burger King announced that, in order to cater for the needs of a significant minority in the population, they were to launch the Left Handed Whopper. This was a hamburger, identical to the normal Whopper, except that all the ingredients were rotated through 180 degrees to make it easier for left handed people to eat it. Thousands of people went into Burger King to order it. Click for more... Sara Trooper