The year is 1851, and doubts regarding the Earth spinning is also a massive one, as many people argue over this activity of the planet and how it relates to other entities in the galaxy. However, the ...

Last week over in Twitter-land, Philip Ball asked an interesting question: I’ve written a fair bit about historical science, and read more than I’ve written, so this question stuck with me, and seems ...

PROF. GREENHILL gives currency to quite an erroneous idea, in last week's NATURE (p. 50). He says “in the Foucault experiment of the pendulum which shows the rotation of the earth, the slightest ...

The Eagleworks team obtained EMDrive experimental force measurements in the torsional pendulum in a hard vacuum (~5.0×10^-6 Torr). Paul March included their last null-thrust test that ran the RF amp ...

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Experiment with three pendulums that are 1-ft, 2.25-ft, and 9-ft long. Determine how many times the 2.25-ft and 9-ft pendulums swing during the time it takes the 1-ft pendulum to swing 30 times. Find ...