The planter of this fir tree used railroad ties to create a deeply-embedded square border around it. As it grew, the roots took their shape, to be revealed after removing the now-rotten wood many years later.
I found the square root

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Guilty verdicts for men who cut down famous tree
The two men who felled the famed Sycamore Gap tree in northern England were found guilty today at Newcastle Crown Court. Daniel Graham, 39, and Adam Carruthers, 32, were each… READ THE REST
Trial begins for men accused of chopping down famous tree in England
The tree at Sycamore Gap is one of England's most famous, a frequent star of movies (including Prince of Thieves) and one of the tourist attractions along Hadrian's Wall. It… READ THE REST
This tree uses lightning to destroy its enemies
The almendro (Dipteryx oleifera) is a massive rainforest tree native to Honduras, Nicaragua, Costa Rica, Panama, Colombia, and Ecuador. While studying the impact of lightning on a forest in Panama's… READ THE REST
There's something about these binoculars that would make Batman jealous
TL;DR: These Digital Binoculars can see at night, snap photos, and record video. They're also only $90 (reg. $159.99). Most binoculars are great in daylight but nearly useless once the sun goes down.… READ THE REST
Your laggy PC deserves better – revive it with Windows 11 Pro with this Deal Days offer
TL;DR: Don't miss this Deal Days price drop that lets you grab Windows 11 Pro for less than $10 for life until July 20. Is newer really better? We certainly don't think so, especially since… READ THE REST
Bye-bye AirTags! The price just dropped on this card-sized tracker.
TL;DR: Get major savings on this versatile tracker that fits on everything. The price just dropped on a three-pack of KeySmart SmartCards — get three for $74.97 (reg. $119.97). Bluetooth trackers are the new-age… READ THE REST