Nice physics

Feb 24, 2022 Last reply: 4 years ago 4 Replies

Using atom interferometry to make a gravity map



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Jan Panteltje snipped-for-privacy@yahoo.com wrote in news:sv74eu$n3u$1 @dont-email.me:

Cool advancements and invention.

Just like lidar was able to see through the trees of Mexico and find lost cities, this will be able to do the same looking "through" the terra firma.

Nice science, but the article authors don't know what SQUIDs are or how they've been used to decades to find buried minerals. This new sensor senses gravity not magnetism, but it's not new in using quantum devices.

Suppose we had a big cube of concrete with unknown stuff inside. Might be cannon balls, basketballs, marble busts of Groucho Marx. Assume a movable g-sensor, like a scope probe, that measures its point vector g field.

Can we wave that probe around outside the block and image the insides?

On a sunny day (Thu, 24 Feb 2022 07:11:44 -0800) it happened snipped-for-privacy@highlandsniptechnology.com wrote in snipped-for-privacy@4ax.com:

Look at how that house appears on that example picture.

I think yes

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