هذا الفيديو هو عرض لتكنولوجيا الهولوجرام او التجسيد ثلاثى الابعاد وهى تكنولوجيا متطورة للغاية يعتقد ان ناسا قد تستخدمها فيما يعرف بشروع الشعاع الازرق اذا احببت المزيد من المعلومات عن الشعاع الازرق فابحث عنها في الانترنيت فسوف تصعق من ما ستجد
Holography is a technique that allows the light scattered from an object to be recorded and later reconstructed so that when an imaging system (a camera or an eye) is placed in the reconstructed beam, an image of the object will be seen even when the object is no longer present. The image changes as the position and orientation of the viewing system changes in exactly the same way as if the object were still present, thus making the image appear three-dimensional.
The holographic recording itself is not an image; it consists of an apparently random structure of either varying intensity, density or profile.
How holography works
Holography is a technique that enables a light field, which is generally the product of a light source scattered off objects, to be recorded and later reconstructed when the original light field is no longer present, due to the absence of the original objects. Holography can be thought of as somewhat similar to sound recording, whereby a sound field created by vibrating matter like musical instruments or vocal cords, is encoded in such a way that it can be reproduced later, without the presence of the original vibrating matter.
Laser Holograms are recorded using a flash of light that illuminates a scene and then imprints on a recording medium, much in the way a photograph is recorded. In addition, however, part of the light beam must be shone directly onto the recording medium - this second light beam is known as the reference beam. A hologram requires a laser as the sole light source. Lasers can be precisely controlled and have a fixed wavelength, unlike sunlight or light from conventional sources, which contain many different wavelengths. To prevent external light from interfering, holograms are usually taken in darkness, or in low level light of a different colour from the laser light used in making the hologram.
Holography requires a specific exposure time (just like photography), which can be controlled using a shutter, or by electronically timing the laser.