Stupidest (and inadvertent funniest) sci-fi movie made..............
Posted on 01/16/2017 12:22:48 PM PST by doug from upland
That’s heavy!!!
Tiny gravity sensor could detect drug tunnels, mineral deposits............or Michael Moore’s approach?..............
Build a 100 foot deep dry canal at least 40 foot wide if you cannot build a wall.
I want one
I want to map the certain caavernous passages under my yard
I can drill a shaft and pump 55 degree air. Cool in summer warm in winter
That’s good news. Besides drug smuggling, it could end the use of tunnels to smuggle weapons across borders. Now that the details are public, I wouldn’t be surprised if the Israelis come up with a practical device before anyone else.
Will wonders never cease...............
How do we know they ain’t already got one?.............B^)
I imagine they could used for navigation, too once accurate gravity maps are established.
I’m sure the property owners along the border will be cool with that. /s
Sounds like it would be useful in detecting subs. It could replace MAD which were big devices on ASW planes and put them on smaller drones to detect subs from the air.
They were still looking for a way to detect the deeper tunnels the terrorists had started constructing last I read.
What else could it possibly tell us?
If I were them, I would just drill a hole every 100 meters or so, about 10m meters deep, fill with high explosives and detonate every couple of months................The tunnels in process would collapse...........hopefully occupied..........
Traditional gravity meters or ‘gravimeters’ are essentially extremely accurate spring balances. The spring/weight mechanism is housed in a vacuum bottle, and fitted with optics so the user can compare a reference mark in a graticle eyepiece. Taking measurements and data reduction is a fairly laborious process for a field technician. The ‘average’ shape of the earth, tides (pull of the moon), coreolis effects and other factors need to be methodically removed from field data to yield useful information. A lot of the tedium has been removed with the advent of GPS technology similar to surveying. The newfangled device described in this article is also a spring balance but in the form of a nano-fabricated cantilever balance.
gravimetric navigation is used by the Navy on submarines, it’s accuracy and the gravity vector maps are all highly classified but yes it not only is possible it is used on a regular basis presently by our boomer subs.
the theoretical accuracy at part per billion in G is tens of meters if the maps are also made at part per billion resolution. Think Tercom navigation but instead of topography vectors as the truth sources gravity vectors are used with comparable accuracy as a note tercom on our cruise missiles is good to about 200 meters cep. One of my degrees is in Geospatial sciences we have been looking at using gravimetrics in the petroleum industry via airborne sources to do reservoir depletion geocellular gridding.
Every time I go down a hill, I feel the core coming at me.
Stupidest (and inadvertent funniest) sci-fi movie made..............
I would really like a postage stamp device that would tell me if there is gold or other valuable minerals under my house.
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