An actively feeding black hole surrounds itself with a disk of hot gas and dust that flickers like a campfire. Astronomers have now found that monitoring changes in those flickers can reveal something ...
The VisionGauge® Disk Inspection & Measurement System is available in different sizes to accommodate all size disks, both large and small. Measure the roll-pin distance, slot spacing, and more... The ...
TOKYO—Matsushita Electric Industrial Co. Ltd. has developed a 3-D profilometer that it says is a crucial tool for making the lens for the next-generation Blu-ray digital video disk systems. Using a ...
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