Meaning of Halflife. I'd like to illustrate what this really means.
If living creatures had halflives the way radioactive atoms do, the world would be a very different place. What do you mean? Suppose there's an alien species with a halflife of, say, 70 years. You randomly pick out 16 baby aliens and track them to see how long they live. After 70 years, of course, 8 of them will still be alive. Forensic Science Experts. Visible Proofs: Forensic Views of the Body: Galleries: Media: Autopsy. WARNING: Some people may find images from actual postmortem dissections disturbing.
Viewer discretion advised. Videos on this page require either QuickTime Player or Windows Media Player. Postmortem dissection, or autopsy, was among the first scientific methods to be used in the investigation of violent or suspicious death. Autopsy remains the core practice of forensic medicine. The postmortem examiner surveys the body's surface, opens it up with surgical instruments, removes parts for microscopic inspection and toxicological analysis, and makes a report that attempts to reconstruct the cause, manner and mechanism of death.
Chemistry Tutorials & Drills. Unit Conversions. Physics Flash Animations. We have been increasingly using Flash animations for illustrating Physics content. This page provides access to those animations which may be of general interest. The animations will appear in a separate window. The animations are sorted by category, and the file size of each animation is included in the listing. Also included is the minimum version of the Flash player that is required; the player is available free from The categories are: In addition, I have prepared a small tutorial in using Flash to do Physics animations. Biology Project - site map.
Physics. Crime Scene Investigation Articles. Quantum Mechanics.