barometric gravimeter

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Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance … Wikipedia
Gravimetry — For the chemical analysis technique, see Gravimetric analysis. Gravity anomalies covering the Southern Ocean are shown here in false color relief. Amplitudes range between 30 mGal (magenta) to +30 mGal (red). This image has been… … Wikipedia
Apache Point Observatory Lunar Laser-ranging Operation — APOLLO shooting a laser at the Moon. The laser pulse is reflected from the retroreflectors on the Moon (see below) and returned to the telescope. The round trip time tells the distance to the Moon to great accuracy. In this picture the Moon is… … Wikipedia
Protocol (natural sciences) — In the natural sciences a protocol is a predefined written procedural method in the design and implementation of experiments. This should establish standards that can be adequately assessed by peer review and provide for successful replication of … Wikipedia

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