20 Matching Annotations
  1. Feb 2025
    1. Charges can jump around between things, especially when things are rubbed together. When you drag your feet on the carpet, electrons from the carpet jump onto you. As the charge builds up, the electrons get too close to each other, and they need a place to escape.
    1. The modern touch screen uses static electricity to function. Your smartphone has a capacitive touch screen. This conductive material stores the static from your finger in an electrostatic grid of tiny wires inside your phone. When you touch the screen, you complete an electrical circuit and cause a voltage drop on that section of the screen. The internal software processes where your finger is and executes a command in milliseconds.
    1. With some sometimes tortuous explanations, the author discusses the issue of static electricity generation in ductwork. He uses logic, basic physics, and some equations to describe electron density, migration, and grounding within typical 4" PVC ducting attached to dust collectors. He concludes that it is effectively impossible for the static charge inside the duct to cause a spark, combustion, or explosion within the flowing air and entrained wood chips. I think he said (I read it a few minutes at a time, when time allowed) that it is entirely possible to receive a static shock from the outside of the ducting.
  2. Feb 2024
    1. static electricity in photocopiers helps to create accurate, high-quality copies of documents

      It is important to the processes of making documents.

    2. static electricity projects a pattern of the image onto the positively charged photoreceptive drum below. The positively charged particles on the drum's surface are neutralized by the light

      It can print using charges

    3. Negatively charged toner particles are then attracted to these positive charges on the paper, and the toner is transferred to a positively charged sheet of paper.

      It is transfer to traction and repelation.

    4. static electricity plays a crucial role in the copying process.

      It is required to photo copy

    1. One effective way of preventing sparks is by connecting all objects to a conductor

      Then it can flow proporly

    2. Spark discharges occur when the charges accumulated on conductive objects create an electric field that exceeds the ambient atmosphere’s electric strength.

      Static needs to stay in the correct conditions to not become harmful.

    3. Sparks are responsible for most industrial fires and explosions as a result of static electricity.

      Static can cause many fires and expolsions

    4. Fires or explosions due to the ignition of flammable or explosive mixtures.

      Static electricity causes sparks putting flammable materials at risk.

    5. static electricity is far from other familiar electromagnetic manifestations of electricity. It can be as hazardous and requires well-planned protection against its threats.

      Static electricity can be dangerous

    1. form of electricity resulting from the imbalance between positive and negative charges

      Only from positive and negative charge.

    1. a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.

      Oxford definition of static electricity