Electrical and Technology

Vegan leather is a synthetic or plant-based alternative to traditional animal leather. It’s designed to mimic leather’s look and feel without using animal hides, making it cruelty-free. There are two main types: synthetic versions, like polyurethane (PU) and polyvinyl chloride (PVC), which are petroleum-based plastics, and plant-based options, which use renewable resources like pineapple leaves (Piñatex), cactus, mushrooms (mycelium), apple peels, or even recycled materials. The renewability angle is where it gets interesting. Synthetic vegan leather isn’t inherently renewable since it relies on fossil fuels, though recycling advances are improving its lifecycle. Plant-based vegan leather, on the other hand, leans heavily into renewability. For example, cactus leather from Desserto uses nopal cactus, which grows with minimal water and no irrigation, regenerating naturally. Piñatex taps pineapple leaf waste—stuff that’d otherwise rot—turning it into a renewable resource. Mycelium leathe...

Primary energy resources are those that are found in nature and mostly converted into secondary resources in industrial utilities. For example, Coal, Oil and Gas (primary energy resources) are converted into steam and electricity (secondary resources of energy) for various applications. The principal energy resources on our plants are the fossil fuels like coals, oil, natural gas, biomass (such as wood, agricultural waste, etc.), water, wind and nuclear energy. Some uncommon energy resources include geothermal and tidal energy. These energy resources are usually classified as:- Primary and Secondary Resources Renewable and Non-Renewable Resources Commercial and Non-Commercial Resources                                                       1). Primary and Secondary Resources :- Primary energy resources are th o se that ar...

Basic of Energy Resource We use energy resource every day. Energy resource is very fascinating . It surrounds us in differ en t forms such as heat, light and electricity.  Any living organism relies on an external sources of energy e.g. Radiation from the sun in the case of green plants, chemical energy in some form in the case of animals (to be able to grow and reproduce). Energy is always conserved, which means that it can neither be created nor be destroyed. Energy may be transformed from one form to another. There is no absolute measure of energy, because energy is defined as the work that one system does (or can do) on another. Thus, only the transition of a system from one state into another can be defined and thus measured. Objectives Explain the meaning of energy and its unit. Understand the various forms of energy. Know the world reserve of energy Describe the different energy sources. ENERGY Ener gy is d efi ned as th e ability or the ca...