Recent content by EnglishScient

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    Hobby project - Bluetooth device

    The most straightforwards way to do this is send a message to the phone using HAYES AT commands. You would need a programmable bluetooth module to be triggered by your button.
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    What is Air Pressure? Understanding the Weight of the Atmosphere

    Air pressure is the result of gravity pulling down on the atmosphere and stopping the air from drifting off into space. So at sea level the air pressure is about 14.7 pounds per square inch, that's the weight of a 1 square inch wide column of air from sea level to the top of the atmosphere...
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    How can the vibrating disk of a speaker produce so many sounds at once

    A speaker just creates one sound. Music can be complex but the speaker is recreating the sound of the music and not its individual components.
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    Electric fields and net charge

    Charge is relative, not absolute.
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    Designing a Closed Loop Water Tunnel for Fluid Dynamics Experiments

    honeycomb flow conditioner ? Why not use a bundle of plastic drinking straws.
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