Dr Rajiv Desai
An Educational Blog
Digital Twin
Digital Twin: Above is an image from the digital twin (DT) of BMW’s factory in Regensburg, Bavaria, created in NVIDIA’s Omniverse. There are two versions of a BMW factory in the medieval town of Regensburg, Germany. One is a physical plant that cranks out thousands of cars a year. The other is a virtual 3-D replica, accessed by screen or VR headset, in which every surface and every bit of machinery looks exactly the same as in real life. Soon, whatever is happening in the physical factory will be reflected inside the virtual one in real time: frames being dipped in paint; doors being sealed onto hinges; avatars of workers carrying machinery to its next destination. The latter factory is an example of a “digital twin”: an exact digital re-creation of an object or environment. The concept might at first seem like sci-fi babble or even a frivolous experiment: Why […]
Digital Learning (Digital Education)
Digital Learning (Digital Education): _ _____ Section-1 Prologue: “Lectures are only terrible if you are a terrible lecturer!”. Lectures that are dynamic, evoke emotion, and engage the audience are worthwhile learning experiences. But in this age without technology dynamicity, emotion evoking, audience engagement etc. are all impossible. For our new generation kids born in latest technological environments, everything seems boring when it is not connected with technology, and rather counterintuitively we expect that they would learn under the same old age classrooms systems. Today’s students are digital natives. This is a generation that has never known a world without Google, the internet or even smartphones. Technology is at the center of their lives, touching every aspect of their day-to-day experiences and influencing their decisions. It stands to reason, then, that technology should be a crucial part of their educational experience. In today’s world, digital technology has not yet been applied […]
HOLOGRAM
HOLOGRAM: _____ Typical laser-lit transmission hologram ____ Prologue: Suppose you want to take a photograph of an apple. You hold a camera in front of it and, when you press the shutter button to take your picture, the camera lens opens briefly and lets light through to hit the film (in an old-fashioned camera) or the light-sensitive CCD chip (in a digital camera). All the light traveling from the apple comes from a single direction and enters a single lens, so the camera can record only a two-dimensional pattern of light, dark, and color. To be more accurate camera records wave length (color) and intensity (amplitude) of light waves. If you move your head slightly, the photograph remains same i.e. it is two dimensional. The physical world around us is three-dimensional (3D), yet traditional display devices can show only two-dimensional (2D) flat images that lack depth (i.e., the third dimension) […]
