A Grave Threat

Please like me! I’m furry, eat pesky mosquitos, and help make Tequila. And you like movies about me. OMSI has one playing right now, The Dark Knight Rises in the OMNIMAX.

What am I? I’m a bat. Me and my buddies eat millions of insects every night. Some of us pollinate delicious plants like bananas, mangoes and agave (the plant we get Tequila from).

Big Brown Bat 

Ask a Scientist! Grossology Edition

Have a science related question? Ask away! We'll track down an answer from one of our OMSI scientists and post the answers.


Q: How long does it really take to digest gum? My second grade teacher said thirty days. -Savannah

A: It's a lot less than thirty days - more like thirty hours. After you chew the sugar out of gum, if you swallow it the gum passes through your body like any other indigestible fiber. Just like the fiber in lettuce, bread or any other food, gum will pass mostly unchanged through your intestines and come out the other end in one or two days.

Cooking Up Science: Ice Cream, You Scream!

As hot weather creeps towards Oregon, the thoughts of many turn to usual summer pastimes: swimming, hiking, barbeques, and of course, ice cream! Beyond the love affair with our taste buds, there’s a lot of cool science behind this sweet treat. Keep reading to learn what makes ice cream so sweet and smooth, and how you can make it at home without any fancy equipment!

My New Favorite Rock

When I lead a geology hike, there are two main concepts that I try to teach. The first is that the earth is always changing, and the second is that every rock tells a story. Last week, I discovered a rock that perfectly demonstrates both concepts at once.

Ask a Scientist - February 2012

Have a science related question? Ask away! We'll track down an answer from one of our OMSI scientists and each month post the answers. 


Q: What is the scientific reason behind what happens when you put a cup of water in window sill and the water disappears? - Janet

A: Water evaporates over time - the water molecules change from a liquid into a gas. The water becomes part of the air you breathe. And it might condense onto the window on a cold day, turning back from a gas into a liquid!
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