Can you imagine eating 16 sugar cubes at one time?

One lump or two? How about 16 lumps of sugar? That is just a little less than the sugar contained in a 20-ounce bottle of cola. Ouch. Just one of the "20 things you didn't know about sugar" (and might have been happier not to know) presented by Rebecca Coffey in the Discover October issue. Amaze your friends with more "20 things you didn't know" on Discover's Web site.

The October issue is fun reading, addressing Great Questions of Science, including:

• What lies beyond the edge of the universe?
• Where have all the bees gone?
• How does physics really work?
• What controls the chemistry of life?
• Did evolution shape us to be generous?

And, a special report on the neurology of sex. Did you know "the parts of the brain that light up during sexual experiences are associated with some of our most sophisticated forms of thought?" You can watch a video of brain activity at discovermagazine.com/web/sexinbrain.

Read the whole issue in the science library! Now on the new journals display rack.