Creator Amit Soni

4D Printing This is the updated version of 3D printing where an object can change its  shape over time in external situations for changes in material based on  temperature or humidity and many conditions like that. 4D printing is achieved by using special materials save memory polymers  (SMPs). SMPs are a special type of polymer with the ability to change shape in  response to specific external situations based on temperature moisture pH  level etc. There are some types of SMPs that can be used for the printing Moisture-responsive SMPs is programmed to change shape when  exposed to moisture between two different shapes at different levels of humidity Light-responsive SMPs change shape between different wavelengths  of light Thermoplastic SMPs change shape in eight different temperatures pH-responsive SMPs changes shape on different Ph levels. Magnetic responsive SMPs change shape in a magnetic field. All these types of qualities add 4th dimension to 3D-printed objects Applications of 4

Smart Dust Introduction to Smart Dust Technology The term smart dust was first introduced in the 1990s by a research group from the University of California Berkeley .  The idea behind this technology was to develop wireless sensors or motes to track the movement of the environment or other activities.  How Smart Dust Works   This technology typically utilizes tiny wireless sensors and motes. As described they are very tiny in size so they can be used in different types of conditions for collecting and transmitting the information. Every smart dust particle is a combination of different types of sensors and microprocessors, radio transceivers, weather sensors, and one or more sensors together. All these smart dust particles are connected to a central hub or central device to communicate or transmit information in a hub.  Motes use wireless communication protocol for example radio frequency or infrared to transmit information to a hub or other device. So the use of motes is to create a