Odds of asteroid hitting Earth went up, but that was expected: What to know about 2024 YR4
The odds that asteroid 2024 YR4 could hit Earth in 2032 recently spiked from a little more than 1% to 2.3% as more ...
Simon Fraser University5y
Moire patterns
No. 1 Coarse grating No. 2 Fine grating No. 3 Logarithmic grating No. 4 Radiating lines No. 5 Equispaced circles No. 6 Circular zone plate No. 7 Sphere projection No. 8 Cylinder projection 2 pieces of ...