SPRINGDALE -- Rider Kiesner is a four-time world champion trick roper and a two-time world champion gun spinner. He's also a master at cracking the bull whip. Kiesner, of Ridley, Okla., appears ...
To Peter Taborek, a drippy faucet is a physics experiment. Taborek uses high-speed video to capture the motion of drops and bubbles coming apart. Knowing the details of this "pinch-off" process is ...
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