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ChrisisC
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Is all of the energy produced by the big bang still around? According to the law of energy conservation it should be right? is it all packed into regular matter? what kind of role does dark energy have to do with this?
ChrisisC said:According to the law of energy conservation it should be right?
ChrisisC said:Well based on this picture, why is most of the energy and matter in the universe dark? if there is a antiparticle or each regular particle and some particles are their own antiparticles, should there be a even number?
Energy isn't conserved in an expanding universe.ChrisisC said:Is all of the energy produced by the big bang still around? According to the law of energy conservation it should be right? is it all packed into regular matter? what kind of role does dark energy have to do with this?
Appreciate your honesty. I find some scientists have a difficult time admitting they don't really know.Drakkith said:That is one of the great unsolved mysteries in cosmology and particle physics. We simply don't know.
Love your honesty and humility!rootone said:Yes all the energy present at the big bang should still be in the Universe in some form or another.
Some of it is in the form of regular matter (and radiation).
Dark matter and dark energy represent the rest of it, but we are still a long way from understanding what those are.
That's usually not a problem you find among scientists. Scientists spend a lot of time examining precisely how much we do and do not know. If anything, scientists tend to be more tentative about expressing certainty than they need to be.K. Doc Holiday said:Appreciate your honesty. I find some scientists have a difficult time admitting they don't really know.
I tend to not believe that, most scientists are much more careful about saying what they do know. Theory either fits observation or it doesn't, or one of them doesn't exist yet. The term "dark" means we don't know.K. Doc Holiday said:Appreciate your honesty. I find some scientists have a difficult time admitting they don't really know.
Pedantic rant:Chronos said:We rely on best fit models, unfortunately, best fit does not always mean best sense. Get used to it.
The energy in our bodies primarily comes from the food we eat, specifically carbohydrates, fats, and proteins. These macronutrients are broken down through digestion and converted into ATP (adenosine triphosphate), which is the main source of energy for our cells.
The majority of the world's energy comes from fossil fuels, such as coal, oil, and natural gas. These non-renewable resources are formed from the remains of plants and animals that lived millions of years ago and have been extracted from the earth through mining and drilling.
Renewable energy is energy that is generated from natural resources that are replenished constantly, such as sunlight, wind, water, and geothermal heat. These resources are considered renewable because they will not run out like fossil fuels and do not emit harmful pollutants into the environment.
Energy is used the most in our daily lives for transportation, heating and cooling buildings, and electricity for lighting and powering appliances. It is also used in industrial processes and agriculture. The demand for energy continues to increase as the world's population grows and economies develop.
Alternative sources of energy can be found in various forms such as solar, wind, hydropower, biomass, and geothermal. These sources are becoming increasingly important as we strive to reduce our dependence on fossil fuels and mitigate the impact of climate change. Research and development in these areas are crucial for finding sustainable solutions for our energy needs.