Search Results | fresh water
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Algae: Pond Scum or Food of the Future?
science.howstuffworks.com/innovation/edible-innovations/algae-food-future.htm
Algae represents big money to some investors and could provide protein to help solve the problem of world hunger.
How Reverse Osmosis Works
science.howstuffworks.com/reverse-osmosis.htm
How does reverse osmosis work? Find out how a semipermeable membrane can act as a filter for some particles while letting others pass through.
The Ancient Mayfly Briefly Lives Only to Reproduce and DieÂ
animals.howstuffworks.com/insects/mayfly.htm
Mayflies have the shortest adult life span of any animal, but swarms of them can still be seen on weather radar.
The 3 Types of Ducks Every Birdwatcher Should Know
animals.howstuffworks.com/birds/types-of-ducks.htm
There are three types of ducks: dabbling, diving and perching. Wild ducks are classified based on their habitat and behavior.
What Do Lizards Eat in the Wild? What Should You Feed a Pet Lizard?
animals.howstuffworks.com/reptiles/what-do-lizards-eat.htm
If you're a fan of reptiles, you've probably asked yourself, what do lizards eat? With over 7,000 known lizard species on Earth, the answer isn’t one-size-fits-all. Some lizards eat only insects, others go for plant matter — and a few go full-on omnivore, chomping on both.
Nikola Tesla's Cat and Other Feline Fascinations
animals.howstuffworks.com/pets/teslas-cat-and-other-feline-fascinations.htm
If it wasn't for Nikola Tesla's cat, we might not have electricity. Part-Time Genius cohosts discuss this and other little-known cats in history.
How Irrigation Works
home.howstuffworks.com/irrigation.htm
Irrigation provides water to plants. Learn how different types of irrigation work and examine the advantages and disadvantages of different types of irrigation.
Petrichor: What Causes the Earthy Smell After Rain?
science.howstuffworks.com/nature/climate-weather/atmospheric/question479.htm
There's often a strong, quite pleasant, smell right after a rain shower. What accounts for petrichor, the 'smell of rain'?
Shark Pictures
animals.howstuffworks.com/fish/sharks/shark-pictures.htm
Shark pictures are a stunning way to learn more about these often feared, often misunderstood creatures of the deep. Check out these shark pictures.
Are the Polar Ice Caps Melting Faster Than We Thought?
science.howstuffworks.com/environmental/earth/geophysics/question473.htm
The polar ice caps have been in the news recently because of their alleged shrinking due to global warming. How much would the oceans rise if the ice caps melted completely?