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Do not adjust your computer monitor, tablet, or smartphone. Do not bother rubbing your eyes. Just scoff, as the chicks do, at the patently impossible air conditioner. Then enter our contest for the chance to win a t-shirt emblazoned with said chicks, said air conditioner, and a host of other science and tech breakthroughs from the week that was March 28th through April 1st.

The rules: Follow us on Twitter (we’re @PopSci, funnily enough) and retweet our This Week in the Future tweet. One of those lucky retweeters will be chosen to receive a custom t-shirt with this week’s Baarbarian illustration on it, thus making the winner entirely too cool for their school, or place of business, or couch. (Those who would rather just buy the t-shirt can do that here.) The stories pictured therein:

And don’t forget to check out our other favorite stories of the week: