1. Scuba stands for Self Contained Underwater Breathing Apparatus
2. Sharks kill, on average, 8-10 humans a year while humans kill over 30 million sharks each year.
3. Once you get below 10 meters (11 yards) deep, humans cannot see red or yellow. If you should cut yourself, your blood will look blue!
4. Sound travels five times faster underwater than through air, making it almost impossible to tell where a sound is coming from.
5. Oxygen becomes toxic when under pressure. At depths greater than 42 meters (46 yards) special gases mixed with low oxygen is used.
6. In 1943 Jacques Cousteau invented SCUBA gear. He called the cylinder tank an aqualung.
7. Nitrogen narcosis affects all divers. Essentially, it is when nitrogen is breathed in at depths of more than 25 meters (27.3 yards). It's a little like being intoxicated.
8. Human children can learn to dive as young as eight years. The limiting factor is that they must be able to manage the weight of the equipment.
9. The Great Barrier Reef is the largest living organism on the planet, with a surface size greater than England.
10. The Grey Whale migrates more than 16093.5 kilometers (10,000 miles) every year.
11. Broken toes are the most common human scuba-diving injury.
12. The world record for the deepest dive using a standard open-circuit scuba system was 318 meters (1044 feet) accomplished by South African diver Nuno Gomes in 2005. The dive was made off Dahab, Egypt.
Whatever your plans are for this weekend, try to spend a little time cooling off in the water. Even if that means dipping your toes in the backyard kiddie pool. Being around water is a great way to beat the heat and to beat the stress from your workweek. I invite you all back again on Monday but until then, stay safe and I wish you