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Trump's TikTok deal will give control to a group of US investors, report says

The plan to "save" TikTok is starting to come into focus. On Tuesday The Wall Street Journal reported more details about a deal between the US and China as the two sides are apparently "finalizing" specifics of the arrangement. According to the report, TikTok's US business will be owned primarily by a group of US investors, which will have a "roughly" 80 percent stake in the entity. The group includes longtime TikTok partner Oracle, as well as Silicon Valley VC firm Andreesen Horowitz and the p

The Rubik's Cube Perfect Scramble

The Challenge I was playing with my son’s Rubik’s Cubes and tried to scramble a cube randomly so that no two squares with the same color were side by side. Here’s one way to do it: But I wanted a scramble that looked like a random scramble. No matter how many different moves I made, I couldn’t do it. Every time I separated two squares with the same color, two other squares of the same color would touch somewhere else. Looking for an easy answer, I went to puzzling.stackexchange.com an

Proofs Without Words

The following demonstrate proofs of various identities and theorems using pictures, inspired from this gallery. Nichomauss' Theorem: the sum of the first cubes can be written as the square of the sum of the first integers, a statement that can be written as . Here, we use the same re-arrangement as the first proof on this page (the sum of first odd integers is a square). Here's another re-arrangement to see this: This also suggests the following alternative proof: