Snowflake unlikely that any two snowflakes are alike due to the estimated 10 (10 quintillion) water molecules which make up a typical snowflake, which grow at different rates and in different patterns depending on the changing temperature and humidity within the atmosphere that the snowflake falls through on its way to the ground. Snowflakes that look identical, but may vary at the molecular level, have been grown under controlled conditions. Although snowflakes are never completely symmetrical, a non-aggregated snowflake often grows so as to exhibit an approximation of six-fold radial symmetry. The symmetry gets started due to the hexagonal crystalline structure
How Do They Do That? by Esther McVey. At its height, How Do They Do That? had 12 million viewers watching on Wednesday nights. How Do They Do That? How Do They Do That? is a British television show, produced by Telepictures and Reg Grundy Productions in and broadcast on BBC1 from 25 January 1994 to 23 April 1997. Originally presented by Jenny Hull and Des Lynam, the show explored feats of engineering, organization, and special effects. Each season opened with a stunt apparently performed by one of the presenters, such as a skydiver crash-landing into the studio, a car chase, or the entire studio