Not directly railroad related, but may be useful for railfans or AP posters.
"
There's nothing quite like the pleasure of sipping a fine Scotch whisky, for those whose tastes run to such indulgences. But how can you be sure that you're paying for the real deal and not some cheap counterfeit? Good news: physicists at the University of St. Andrews in Scotland have figured out how to test the authenticity of bottles of fine Scotch whisky using laser light, without ever having to open the bottles. They described their work in a recent paper published in the journal Analytical Methods." -- [
arstechnica.com]. Of course, you should be sure to also read the comments there.