What is energy?

by **Guest** » Sun Jun 25, 2023 12:07 pm

FYI: Physicists Discover a New State of Matter Hidden in The Quantum World.

by **GeradHum** » Tue Apr 25, 2023 4:34 pm

Energy is a fundamental concept in physics that refers to the ability of a system to do work. It is a property of matter and radiation and can be stored or transferred from one object or system to another.

In simpler terms, energy is the capacity of a physical system to perform work. Work is the product of force and displacement, so energy can be thought of as the ability to apply a force over a distance. Energy exists in various forms, including kinetic energy, potential energy, thermal energy, electromagnetic energy, and chemical energy.

Energy is a crucial aspect of many scientific and engineering disciplines, including thermodynamics, mechanics, and electricity and magnetism. It is also a critical aspect of our everyday lives, powering our homes, transportation, and industries. The conservation and efficient use of energy are essential for sustainable development and mitigating climate change.

by **Guest** » Sun Nov 21, 2021 1:28 am

What are some implications of a world with positive or negative infinite energy?

"First of all, we're surrounded by inexhaustible clean-energy sources—the sun, the wind, the ocean, plants, atoms, the earth's core—but the technology and economic rationale for tapping them have lagged behind our imaginations. Go figure!"

Relevant Links:

'Infinite Energy Creates Better Life',

https://www.researchgate.net/publication/337205178_Infinite_Energy_Creates_Better_Life;

'Zero-energy universe', (Go figure!

)

https://en.wikipedia.org/wiki/Zero-energy_universe.

by **Guest** » Sun Sep 26, 2021 3:12 pm

FYI: On the Wonder and Usefulness of Photosynthesis ( Earth's Great Green Energy Machine),

https://en.wikipedia.org/wiki/Photosynthesis.

by **Guest** » Tue Aug 17, 2021 12:57 pm

“Hmm. All energy-mass interactions are more (useful work) or less (entropy) about nature’s attempt to form robust structures over time and over space.”

FYI: 'Black holes surrounded by massive, energy-harvesting structures could power alien civilizations',

https://www.sciencemag.org/news/2021/08/black-holes-surrounded-massive-energy-harvesting-structures-could-power-alien?utm_campaign=news_daily_2021-08-16&et_rid=756500485&et_cid=3885069.

Please keep an open mind!

by **alexaben** » Fri May 07, 2021 2:43 am

Scientists define energy as the ability to do work. Modern civilization is possible because people have learned how to change energy from one form to another and then use it to do work. People use energy to walk and bicycle, to move cars along roads and boats through water, to cook food on stoves, to make ice in freezers, to light our homes and offices, to manufacture products, and to send astronauts into space.

There are many different forms of energy, including

Heat
Light
Motion
Electrical
Chemical
Gravitational
reference
https://www.eia.gov/energyexplained/what-is-energy/
https://infotainmentbeats.com

by **Guest** » Thu Apr 22, 2021 4:42 pm

Guest wrote:
Guest wrote:FYI: "'Every euro invested in nuclear power makes the climate crisis worse.
Can nuclear energy help us meet climate goals? The editor of the World Nuclear Industry Status Report, Mycle Schneider, says no..."
... "

FYI: "Czech researchers develop revolutionary nuclear heating plant.
A team of scientists has come up with a radical solution to heat cities using spent nuclear rods, which they say is cost-effective and greener than natural gas. As the EU moves away from coal, many are interested."

https://www.dw.com/en/czech-researchers-develop-revolutionary-nuclear-heating-plant/a-57072924.

FYI: "Should America Go Nuclear?
It’s carbon-free, but has a history of disasters. Investing more in nuclear power can help get us to carbon-neutral by 2050. But is it worth it?"

https://www.nytimes.com/2021/04/21/opinion/nuclear-power-climate-change.html?action=click&module=Briefings&pgtype=Homepage&showTranscript=1

by **Guest** » Thu Apr 08, 2021 4:43 pm

Guest wrote:FYI: "'Every euro invested in nuclear power makes the climate crisis worse.
Can nuclear energy help us meet climate goals? The editor of the World Nuclear Industry Status Report, Mycle Schneider, says no..."

https://www.dw.com/en/nuclear-climate-mycle-schneider-renewables-fukushima/a-56712368. "

FYI: "Czech researchers develop revolutionary nuclear heating plant.
A team of scientists has come up with a radical solution to heat cities using spent nuclear rods, which they say is cost-effective and greener than natural gas. As the EU moves away from coal, many are interested."

https://www.dw.com/en/czech-researchers-develop-revolutionary-nuclear-heating-plant/a-57072924.

by **Guest** » Tue Mar 23, 2021 11:13 pm

Guest wrote:Hmm. Is there a fifth force of nature? And if so, does it explain or explain away 'dark' matter and 'dark' energy?

FYI: 'Physicists claim to have found NEW force of nature which may unravel one of the universe’s greatest MYSTERIES.'

https://www.rt.com/news/473879-physicists-discover-fifth-force-nature/

FYI: "Mind over matter: Physicists hailing (tentative) discovery of ‘mystery force’ as their holy grail...",

https://www.independent.ie/world-news/europe/britain/mind-over-matter-physicists-hailing-discovery-of-mystery-force-as-their-holy-grail-40233265.html.

by **Guest** » Thu Mar 11, 2021 5:29 pm

FYI: "'Every euro invested in nuclear power makes the climate crisis worse.
Can nuclear energy help us meet climate goals? The editor of the World Nuclear Industry Status Report, Mycle Schneider, says no..."

https://www.dw.com/en/nuclear-climate-mycle-schneider-renewables-fukushima/a-56712368. "

by **Guest** » Fri Dec 04, 2020 2:04 pm

FYI: "Study shows promising material can store solar energy for months or years
Lancaster University researchers studying a crystalline material have discovered it has properties that allow it to capture energy from the sun. The energy can be stored for several months at room temperature, and it can be released on demand as heat..."

https://www.eurekalert.org/pub_releases/2020-12/lu-ssp120220.php.

by **Guest** » Wed Sep 30, 2020 4:06 pm

FYI: "Matter, Energy, and Gravitation,

In our models, not only space, but also everything “in space”, must be represented by features of our evolving hypergraphs. There is no notion of “empty space”, with “matter” in it. Instead, space itself is a dynamic construct created and maintained by ongoing updating events in the hypergraph. And what we call “matter”—as well as things like energy—must just correspond to features of the evolving hypergraph that somehow deviate from the background activity that we call “space”.

Anything we directly observe must ultimately have a signature in the causal graph. And a potential hypothesis about energy and momentum is that they may simply correspond to excess “fluxes” of causal edges in time and space. Consider a simple causal graph in which we have marked spacelike and timelike hypersurfaces:..."

Source Link: https://www.wolframphysics.org/technical-introduction/potential-relation-to-physics/matter-energy-and-gravitation/.

by **Guest** » Tue Jun 16, 2020 4:59 pm

Guest wrote:
Guest wrote:Hmm. Is there a fifth force of nature? And if so, does it explain or explain away 'dark' matter and 'dark' energy?

FYI: 'Physicists claim to have found NEW force of nature which may unravel one of the universe’s greatest MYSTERIES.'

...

FYI: 'Mystery of dark matter may be solved after discovery of ‘exciting’ new particle, UK scientists say
Possible answer to one of science’s biggest conundrums ‘doesn’t require any concepts new to physics’,

https://www.independent.co.uk/news/science/dark-matter-source-new-particle-hexaquark-university-of-york-a9374686.html.

FYI: 'New ideas in the search for dark matter',

https://phys.org/news/2020-06-ideas-dark.html.

by **Guest** » Sat Mar 07, 2020 11:30 am

FYI: 'Machine learning illuminates material's hidden order.'

https://phys.org/news/2020-03-machine-illuminates-material-hidden.html.

by **Guest** » Wed Mar 04, 2020 3:01 pm

Guest wrote:Hmm. Is there a fifth force of nature? And if so, does it explain or explain away 'dark' matter and 'dark' energy?

FYI: 'Physicists claim to have found NEW force of nature which may unravel one of the universe’s greatest MYSTERIES.'

https://www.rt.com/news/473879-physicists-discover-fifth-force-nature/

FYI: 'Mystery of dark matter may be solved after discovery of ‘exciting’ new particle, UK scientists say
Possible answer to one of science’s biggest conundrums ‘doesn’t require any concepts new to physics’,

https://www.independent.co.uk/news/science/dark-matter-source-new-particle-hexaquark-university-of-york-a9374686.html.

by **Guest** » Tue Dec 03, 2019 8:51 pm

FYI: 'Solar power from space? China says it can.
The energy is converted to microwaves or lasers and then beamed wirelessly back to the Earth’s surface for human consumption.'

https://www.asiatimes.com/2019/12/article/solar-power-from-space-china-says-it-can/.

by **Guest** » Mon Dec 02, 2019 4:45 pm

Hmm. Please ponder energy on the very small scales (Planck) to the very large scales (Neutron Stars, Black Holes, Galaxies, etc.)...

Keywords: Hilbert's Sixth Problem

Some Required Reading:

'Hilbert Space Theory and Applications in Basic Quantum Mechanics,

https://pdfs.semanticscholar.org/b282/4b20dcebd702c3a242cfacee4df65512122e.pdf;

'Hilbert Space Quantum Mechanics',

http://quantum.phys.cmu.edu/QCQI/qitd114.pdf.

by **Guest** » Sat Nov 30, 2019 2:57 am

Wow! '23 Milestones in Spin',

https://www.nature.com/milestones/milespin/pdf/milespin_all.pdf.

Relevant Reference Link:

'Nature Milestones: Spin',

https://www.nature.com/milestones/milespin/timeline.html.

by **Guest** » Fri Nov 29, 2019 8:55 pm

FYI: 'Toward more efficient computing, with magnetic waves:
Circuit design offers a path to “spintronic” devices that use little electricity and generate practically no heat.',

http://news.mit.edu/2019/computing-magnetic-waves-efficient-1128;

Relevant Reference Link:

'Spintronic Circuits: The Building Blocks of SpinBased Computation',

https://scholarcommons.usf.edu/cgi/viewcontent.cgi?article=4871&context=ujmm.

by **Guest** » Fri Nov 29, 2019 4:31 pm

Hmm. As our grand universe evolves, so too does our understanding of its nature...

FYI: 'The Simple Idea Behind Einstein’s Greatest Discoveries:
Lurking behind Einstein’s theory of gravity and our modern understanding of particle physics is the deceptively simple idea of symmetry. But physicists are beginning to question whether focusing on symmetry is still as productive as it once was.'

https://www.quantamagazine.org/einstein-symmetry-and-the-future-of-physics-20190626/.

What is energy?

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