ChemEd DL aims to provide exemplary digital resources, tools, and online services to aid in teaching and learning chemistry. A collaborative, community-driven effort, we provide a destination for all those interested in chemistry to share what they know so that others may learn.
"Chogger - The Web Comic Strip Creator
Chogger lets you create and share web comics online!
You can build comic strips by adding drawings, photos, and speech balloons."
"Simplicity Can Seem Complex
Memorable pictures are made using time-tested techniques, methods -- and, yes, even tricks. To help photographers of all stripes up their game, LIFE.com is launching a series of "lessons" on photography, focusing on elemental aspects of picture-taking. One of those aspects, of course, is the critical consideration of lighting. LIFE.com asked professional photographer Tyler Stalman to offer insights on effective lighting, use of shadows, shooting at night, etc. Of this stunning Andreas Feininger picture of a young Dennis Stock (a formidable photographer in his own right) holding camera in front of his face, Stalman says, "The main lesson here is that a smart, accomplished photographer can manipulate light and shadow so the viewer is not immediately aware of what's going on -- while knowing that the image itself is somehow powerful. I admit, I went for years without realizing that it was simply lighting at work in this picture, creating an amazing 'shape' within the image, rather than the subject wearing gloves, or a sort of cowl on his head. So sometimes a really simple technique -- like this tight circle of bright light on a face -- really goes a long way.""
"Find Natural Frames
Memorable pictures are made using time-tested techniques, methods -- and, yes, even tricks. To help photographers of all stripes up their game, LIFE.com is launching a series of "lessons" on photography, focusing on elemental aspects of picture-taking. One of those aspects, for instance, is composition, or how a picture is framed, and how that frame is filled. LIFE.com asked professional photographer Tyler Stalman to offer insights on effective composition. "I love this photograph," Stalman says of Ralph Morse's shot taken on a naval ship in 1942 for LIFE. "Keep an eye out for natural frames for your subjects. Here, even if the doorway or hatch had not been there, it would have been a nice photo. But the framing adds an extra level of drama: You get a kind of voyeuristic look through the door, which is heightened because the guy is not looking at the camera, as if he's unaware of it.""
"Look for New Environments, Mix People Up
Memorable pictures are made using time-tested techniques, methods -- and, yes, even tricks. To help photographers of all stripes up their game, LIFE.com is launching a series of "lessons" on photography, focusing on elemental aspects of picture-taking. Among those: portraiture, or how to take pictures of people that really feel alive. LIFE.com asked professional photographer Tyler Stalman to offer insights on taking great portraits. Of this classic LIFE photograph by John Loengard of the Beatles in a pool in Miami, Stalman says: "Most people, when taking group shots, want to line everybody up -- even putting them in rows -- but when you have a bunch of people it's great to put them in a new or unexpected environment. Like this Loengard photo: you get all this extra depth in the picture, and there's so much going on at once. Don't be afraid to shuffle people around when you're doing a group shot.""
Mission Statement: The Technology Student Association fosters personal growth, leadership, and opportunities in technology, innovation, design, and engineering. Members apply and integrate science, technology, engineering and mathematics concepts through co-curricular activities, competitive events and related programs.
"DNA - The Double Helix Game
- How is a DNA molecule built up?
- How are copies of a DNA molecule made?
- What does "base-pairing" mean?
- How does the genetic material in thale cress (a plant), house mice, human beings, Escherichia coli bacteria, tuberculosis bacteria, bakers' yeast, malaria mosquitos and malaria parasites differ?"
