Components (How the technologies work) Computer For this installation, both computer set-ups (before and after scanning procedures), is able to make necessary computations to make possible holographic simulations of physical, as well as internal, aging of the human body (based on biomedical researches). Scanning Procedures A. Magnetic resonance imaging (MRI) MRI works because the single largest constituent of the human body - about 75% - is water. A molecule of water (H2O) is composed of two hydrogen (H) atoms and one oxygen (O) atom. The inner core (nucleus) of each hydrogen atom consists of a single proton. Under normal conditions, these protons are constantly spinning, which envelopes them within a tiny magnetic field. Normally, this intrinsic magnetic field is randomly orientated (i.e. has no particular overall direction). Placing a person inside an MRI scanner, however - which is essentially a very large powerful magnet - makes the protons in their body line up either with or against the direction of the scanner's own strong magnetic field. To make an image, short bursts - or pulses - of radiowaves are directed at the area being examined through a special antenna (called a coil). This knocks the protons off-balance, causing them to flip their orientation. When the pulse is turned off, the protons return, or relax, back to their original positions. As they do so, they emit weak radio signals (the MR signal) of a particular frequency, which are analysed by a computer and combined to create a series of cross-sectional images - called scans - in any orientation. For this installation, the MRI will be done throughout the entire body as the subject goes through the special MRI tunnel. The information will then be digitally transmitted to the computer that will put all the information together to help create the holographic image. B. Aging Technology developed by Tom Schneider and Nancy Burson A method of simulating the appearance of a person 20 years in advance. This shall be done by through the following processes: 1) recording (scanning) a full-body (nude) picture of the subject; 2) recording (scanning) a full-body (nude) picture of an older subject (must be from the same family); 3) finding and recording the difference between the old and young figures; 4) recording a picture of a figure to be transformed to simulate said figure at a different age; 5) modifying said figure to be transformed with said differences; and 6) displaying said figure to be transformed modified with the differences. Holography A hologram is made by bathing a 3-dimensional object in the powerful beam of laser light. Light waves reflected from the object form a pattern which is recorded on special holographic plate. When this is developed and light is shone onto it, the original object is recreated as fully three-dimensional image. For this installation, however, the holographic image will be based solely on the information transmitted digitally on the recording plage. Thus, providing the three-dimensional image of the subject. Back to Main Page [Image]