Physics, Monday, Class #8, Period 4

[carter-i-am.livejournal.com]

"Afternoon, everyone," Sam said from her perch on the desk. "It's good to see you all after the parental invasion this weekend. Rodney, I hope you found your sister."

"Today we'll be talking about light. The three primary properties of light are intensity, frequency or wavelength, and polarization."

"The human spectrum of visual is from red to violet, which can be seen individually when you look at white light through a prism," she explained, writing ROYGBIV on the board, near the equations, "but ultraviolet and infrared are just as important for human survival, as well as the survival of the planet. A red shift--where suddenly infrared light is visible to the human eye--is fatal after a remarkably short period of time. Not just to the humans, but to the things that humans depend on for food, such as plants and animals."

Not their shining moment of Stargate use, no.

"Light, obviously, can come from a number of different sources, although the primary source of light on this planet is obviously the sun. Light, which is thought to travel in waves, can be refracted, or bent through the use of optics. We'll get into theories of how light works next week. For now, I just want you to get used to seeing it and measuring it--there are prisms, magnifying lenses, and telescopes for you to work with, as well as different light sources, so you can see how the spectra of light differ. There are also spectrometers, so you can measure the light and try to predict its behavior, if that's your thing."

Comments

Re: Play with the Prisms and Lenses

[the_merriest]

"Yours," she said easily. "That we were talking about. He says it's getting better, I mean, with people getting along. And we kinda talked about mine, too, but mostly how things are changing, and how it's hard to undo all of that in a short time, you know?"

Re: Play with the Prisms and Lenses

[withoutverona]

"He said as much," Romeo said. "I'm not sure. It all feels very far from here. Even when I've gone home, I've felt far from all of it."

Re: Play with the Prisms and Lenses

[the_merriest]

"You've changed," she said, biting her lower lip. "It happens. This becomes home, and home seems weird again when you go back to it. It all moves on without you and you kinda wonder where your place is, now, yeah?"