longest

Longest days accompany the December solstice

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Sundial at Adler Planetarium in Chicago. A sundial can be used to measure the interval from one solar noon to the next. Earth’s longest days, from noon to noon, happen in December. Image via Wikimedia Commons (CC BY-SA 4.0). What is a day? You might casually talk about a day as a period of daylight. … Read more

Humpback whale breaks record for longest migration

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Alexandra E. Petri wrote an interesting article about a humpback whale, published in The New York Times on December 12, 2024. She describes a male humpback whale that traveled three oceans, during the years 2013 to 2022. This whale has now broken the record for the longest documented distance yet traveled by a humpback. The … Read more