Infographic of the Day

Calendar Hides Trivia With Heat-Sensitive Plastic

Calendar Hides Trivia With Heat-Sensitive Plastic

I love those tear-off desk calendars that offer up an interesting factoid or piece of historical trivia for each day of the year. But they're not exactly pretty to look at, and throwing away 365 pieces of paper makes me feel guilty if I stop and think about it. Solution: "On This Day," a "perpetual" wall calendar that's dazzlingly colorful and hides each daily piece of trivia under a piece of heat-sensitive material. Just rub your finger over the calendar date, and the black color disappears to reveal your fact-of-the-day.