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Nick Szabo· 2025-10-31 04:22
Historical Analysis of Steam Engine Technology - The analysis suggests that Hero's steam spinner was a mere novelty, irrelevant to actual steam engine technology [1] - Early steam engines in Britain were primarily used for mine pumping [1] - Roman's limited need for mine pumping was due to cheap slave labor and a drier climate [1] Scientific Knowledge and Innovation - Innovators in Britain and France were aware of scientific discoveries about vacuum and the atmosphere [2] - Romans had limited interest in abstract science, hindering their knowledge of the atmosphere and vacuum, despite their expertise in civil engineering and piston pumps [2]
Energy Swaraj: Powering Future | Dr. Chetan Solanki | TEDxNavrachana International School Vadodara
TEDx Talks· 2025-09-15 15:17
Environmental Impact & Awareness - The annual per capita garbage creation in India is 125 kg per person per year, while the world average is 270 kg, and America is 950 kg per person per year [6] - The garbage thrown into the atmosphere is 25 tons per person per year globally, 54 tons per person per year in India, and 12 to 13 tons per person per year in developed countries like America [14] - There is 53% extra greenhouse gases in the atmosphere, leading to a warmer planet [20][21] - The planet's temperature has already increased by 25° Fahrenheit, indicating the planet has a fever and lost balance [27] Energy Consumption & Sources - 80% to 85% of energy used comes from coal, oil, and gas, all of which are carbon-based [18][19] - Burning carbon results in carbon dioxide emissions, which are released into the atmosphere [19] Climate Change Thresholds & Consequences - At 15° centigrade of global warming, climate change will start to become irreversible, and at 2° centigrade, it will be completely irreversible [23] - By the end of the century (2100), the global temperature will rise to a minimum of 3° and up to 6° centigrade [24] Responsibility & Action - Every individual is part of the climate change problem, and therefore, every individual is responsible for correcting it [30][31]