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NASA's Chandra telescope uses 'X-arithmetic' to reveal how black holes shape galaxy clusters (images)
The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...
Again, the secret is how you’re wrapping all the way around the item. A diamond orientation means you’re folding over right ...
Puzzles are a hands-on way to explore simpler and complex mathematical relationships, for everyone from kids to calculus students.
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