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Human colonies beyond Planet Earth!

Currently the International Space Station and the Chinese Space Stations are Human colonies, beyond the karman line, but attached to the Earth's gravity.  Plans for future colonies on the Earth's Moon and the neighbouring planet Mars, is in the pipeline.  Our Planet Earth is facing many problems, like risk of Nuclear wars from Humans, Creations of Huge pollutions due to many technological developments, mining activities, threats to Environment and biodiversity, Human population explosions, etc.  In Nature, all active species likes to increase its populations and fight for the dominance in the given space. Fight for existance and dominace in a small area is more fierce, then in the larger area. Since the Space beyond planet Earth is infinite and with the many strange mysteries, Humans, especially that of the rich and developed Nations are spending a lot to know and grasp the opportunities of the Infinite.  But at present the space technologies are highly costly and a ...

Artificial Biosphere

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On planet Earth, we have some large farm houses, that have some population of family members, workers and farm animals, that produces almost all crops for  there requirement. They are self-dependent and depends very less or almost zero on external supplies. Oxygen rich air and aquifer water connects them to the other parts of society. Common examples are Jail, military colonies, presidential palace, Agricultural college & research stations, etc. A living eggs too inspires an Artificial Biosphere. The life inside the egg has very few requirements, while a human entering an Artificial biosphere will have a large requirements. Cruise ships, have good role in human civilization developments. It has food reserves for some months. They have inspired artificial biospheres. Earth's ocean based Submarines, made human to stay in a small enclosure. Here the food, water, oxygen, energy, etc. reserves are for small period say a week.  Submarines inspired the near to Earth, Space statio...

Lead Acid Battery

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I had first invested in a lead acid battery (Exide battery-Champion-Rs.4500, 15 Kg) in year 2012, mainly  to run the television when there is no current. With Sukam Inverter-150 Watt (-Rs.1500), it used to give me a power for half an hour. But I couldn't use it for longer time, as for jobs, I had to be away from house for many months. The battery got in the discharged condition. An electrician told me to wash it with hot water and salt and then fill it with dilute sulfuric acid (1250 concentration, price of 1 lit around Rs.20). But in mental confusion I couldn't work on his advice and  later in financial stress I sold it to a scrap buyer in Rs.700.  Later in year 2018, when Gods of wealth again became happy on me, then I again invested in the lead acid battery (Amaron Black-BL 900 LMF- 90 Ampere hour, Rs.5800), for running the Desktop computer system along with a UPS. But making it to work with the Squared wave Sukam inverter was not satisfying me.  In year 2020, wit...