Hot Hands, Instant Crystals, and Super Cool Solutions

As the weather gets colder, fingers get frosty. Most chemical hand warmers are single use and take a while to warm up. But it's easy to make an instant, reusable hot pack with two simple ingredients: baking soda and vinegar. Follow the recipe below to make your own at home!

Materials:
  • 1 cup white vinegar (acetic acid C2O2H4)
  • 5 level teaspoons of baking soda (sodium bicarbonate NaHCO3
OR

Celebrate Sustainably

Come with friends and family. Leave with tools and ideas.

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.

How we can be Clever Together

Clever Together opened this weekend in OMSI’s Earth Science Hall! When I first saw it, I thought “I need to bring every visiting friend to come see this!” The exhibit highlights so many sustainable practices and opportunities that are supported here in Portland. I realized when walking through the exhibit that these are all things that make me proud to live in this city.

Hand-Eye Supply Getting Geared Up for Portland Mini Maker Faire

Core77's Hand-Eye Supply store is proud to be a part of Portland's emerging maker culture and we couldn't be more thrilled about the upcoming Mini Maker Faire at the Oregon Museum of Science and Industry. As media sponsors for Portland's Mini Maker Faire and the upcoming World Maker Faire in New York City, we are enthusiastic supporters of the World's Biggest Show and Tell.

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