9 Interesting Facts About Water

26 Mar 2018

"If there is magic on this planet, it is contained in water." Loren Eisely, The Flow of the River

In celebration of World Water Day, as well as Human Rights Day, enjoy this list of eye-opening facts about nature’s life-blood. Test yourself: How many of these facts do you already know?

1. Water usage in Cape Town has increased by 54 million litres per day since the postponement of Day Zero to 2019.
2. Urban areas use 25.1% of South Africa’s water supply, the mining sector uses 5.7%, rural areas use 4.3%, while agriculture uses a whopping 60% of the country’s water.
3. A report by UNESCO states that 74% of all people living in rural areas in South Africa are entirely dependent on groundwater (local wells and pumps).
4. There is more fresh water underground in aquifers than is on the earth’s surface.
5. 69% of the entire world’s fresh water is frozen in ice and glaciers, while 30% is underground. Only 0.26 % is in freshwater lakes.
6. The weight a person loses directly after intense physical activity is weight from water, not fat.
7. The Water Recovery System on the International Space Station recycles 93 percent of astronauts’ sweat and urine, turning it back into drinking water. According to Layne Carter, a water subsystem manager for ISS, it tastes like bottle water.
8. You can die from drinking too much water too quickly. This is called water intoxication and occurs when water dilutes the sodium level in the bloodstream and causes an imbalance of water in the brain.
9. Hot water freezes faster than cold water. This is called the Mpemba Effect, named after Tanzanian scientist Dr Erasto Mpemba. Scientists are still unsure of the cause.