ScienceIQ.com

A Tickle is All in the Timing

It's often been noted that no matter how hard you might try, you can't tickle yourself. Why not? Whether it's your finger or someone else's, a prod in the ribs is a prod in the ribs. Why should only one of two objectively identical stimuli evoke a tickle response? The answer lies in the fact that it's your brain that creates the sensations of a ...

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Tickle
Biology

Regeneration 101

So who is the greatest regeneration superhero of all? Among vertebrates the lowly salamander is the champion 'comeback kid.' We humans are pitiful by comparison. We can often regrow the tip of a ... Continue reading

Regeneration101
Geology

Antarctica and Climate Change

Because of its influence on world weather and climate patterns, Antarctica lies at the heart of the debate on climate change and has become the premier location in which to study the effects of global ... Continue reading

AntarcticaandClimateChange
Biology

Fahrenheit 98.6

When you're well, your body temperature stays very close to 37o C. (98.6o F.), whether you're playing basketball in an overheated gym or sleeping in the stands at an ice hockey game in a snowstorm. ... Continue reading

Fahrenheit986
Physics

The Coriolis Effect

The Earth, rotating at about 1000 miles per hour (1,609 km/hr), influences the flow of air and water on its surface. We call this the Coriolis Effect, named after French scientist Gaspard Coriolis, ... Continue reading

Coriolis

What's In Your Water?

WaterSewageThe United States has strict policies on water treatment systems and sewage drainage, but what about other countries? 'Don't drink the water' is the first thing most people hear when they tell their friends they're going to Mexico. So what exactly is in the water and how does it get there? Do Mexicans get sick from their water too?

As water runs through watersheds, it picks up microorganisms, such as E.coli, Cryptosporidium, and Giardia from cow waste and Salmonella from chicken waste. These organisms, when taken in by humans, can cause flu-like symptoms such as fever, vomiting, and diarrhea. Most groundwater is considered to be safe for drinking since it runs through layers of dirt which filter out harmful microorganisms. In the United States, any raw human sewage is required to be treated. Virtually all water has some microorganisms in it, harmful or harmless and in varying amounts. We are used to the water where we live and most people don't become ill from drinking the water they have drunk all their life. So why do we get sick from drinking Mexico's water?

The main reason people from the United States become ill from drinking Mexico's water is because we are not used to the amount or kinds of microorganisms present in their water. The people who live in Mexico are almost immune to the microbes present in their drinking water. So, why are their water supplies so polluted? Their water treatment facilities are not advanced; therefore, large investments are required to improve the quality of Mexico's water.