Why don't perpetual motion machines ever work? - Netta Schramm

Important Vocabulary Words From The Video


To sketch is to draw pictures or diagrams using pencil or a pen. When you sketch something, you usually don't make it very accurate.

  • He sketched a rough outline of the building on the pad.
  • She sketched a rough idea of the design on a piece of paper.

Perpetually means forever. The flowers will perpetually be alive, even if they don't get watered.

  • The perpetual flame will always be burning.
  • The company is perpetually losing money, even though they are doing everything that they're supposed to.

A lightbulb is a small, light device that is used to light up a room. It is usually made of plastic or metal, and it has a cord that plugs into a power source.

  • I need a lightbulb for the porch, because the light is too weak.
  • I replaced the lightbulb in the hallway.

Imaginations are the thoughts and ideas that we have about things that are not real. Our imaginations can be very creative, and we can use them to imagine different worlds and possibilities.

  • The child's imagination was filled with wonderful stories.
  • The artist uses her imagination to create beautiful paintings.

Theorized is a verb meaning to say that something is probably true. You might theorize about what might have happened in the past, or what might happen in the future.

  • The police theorized that the suspect was involved in the crime.
  • The scientist theorized that the new vaccine is safe.

To degrade something is to make it less good or valuable. You can degrade a piece of art, a piece of furniture, or a person.

  • He degraded the painting by painting over the original work.
  • The furniture was degraded by being covered in paint.

Leeching is the process of sucking blood from something. Leeches are creatures that are able to suck blood from other animals.

  • The victim was leeched of all of his blood.
  • The victim was leeched of blood for days.

To be stymied is to be prevented from doing something by a problem or obstacle. When you're stymied, you're not able to accomplish anything because of the obstacles in your way.

  • The project was stymied by the lack of funds.
  • The project was stymied by the lack of skill.

Conclusively means that there is no doubt about the matter. When you say that something is conclusively proven, you mean that there is no room for doubt.

  • The evidence was conclusively clear.
  • The conclusion is conclusively that the politician is guilty.