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Archive for the ‘chemistry’ category: Page 228

Sep 21, 2021

A 123,000 MPH Nuclear Rocket Could Reach Mars in Only One Month

Posted by in categories: chemistry, space travel

Four times faster than existing chemical rockets

In the seven months NASA estimates it would take to fly humans to Mars, any number of catastrophic failures could occur. That’s why Díaz said in a 2010 interview with Popular Science that “chemical rockets are not going to get us to Mars. It’s just too long a trip.” A conventional rocket must use its entire fuel supply in a single controlled explosion during launch before propelling itself towards Mars. There is no abort procedure, the ship will not be able to change course, and if any failure occurred, mission control would have a 10-minute communications delay, meaning they could find themselves helplessly watching on as the crew slowly dies.

Sep 21, 2021

Mars Was Always Destined to Die

Posted by in categories: alien life, chemistry

Mars is the solar system’s near-miss world. Earth may have gotten everything right when it came to sustaining life—atmosphere, water, proximity to the sun. Mercury, Venus and the outer planets, with their extreme temperatures and inhospitable chemistry, may have gotten everything wrong. Mars, on the other hand, came so close, yet fell short.

Thanks to data from rovers and other spacecraft, we know that the Red Planet once fairly sloshed with water—with dry deltas, riverbeds, and sea basins stamped into its surface. But 4 billion years ago, the Martian core cooled, shutting down the dynamo that sustained its magnetic field. That left the planet vulnerable to the solar wind, which clawed away the atmosphere, and allowed the Martian water to sputter into space. Before long—in geological terms—the planet was a desert.

At least that’s long been the thinking. But a new paper published Sept. 20 in the Proceedings of the National Academy of Sciences suggests otherwise. According to the new research, Mars was doomed from the start. Its small size—about half the diameter of Earth and less than one-ninth the mass—simply never produced the gravitational muscle to allow the planet to hold onto either its air or its water. With or without a magnetic field, Mars was destined to die.

Sep 21, 2021

Elon Musk Confirms “Challenges” With Toilet on Tourist Spacecraft

Posted by in categories: business, chemistry, Elon Musk, space travel, sustainability

Maybe try a 100 percent recycling rate for sewage and chemical extraction.


As if going to the bathroom in microgravity wasn’t complicated enough.

It sounds as though the four space tourists on SpaceX’s historic Inspiration4 flight last week had a bit of a smelly mishap. The Waste Management System experienced an “anomaly” — that’s code of “uh oh” in space jargon — with its suction fan causing the crew to struggle with doing their business while floating hundreds of miles above the surface.

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Sep 21, 2021

Periodic Table

Posted by in category: chemistry

This video explains periodic table and trends of periodic table.

Thank You For Watching.

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Sep 21, 2021

Novel assay finds new mechanism underlying red blood cell aging

Posted by in categories: biotech/medical, chemistry, life extension

Red blood cells are the most abundant cell type in blood, carrying oxygen throughout the human body. In blood circulation, they repetitively encounter various levels of oxygen tension. Hypoxia, a low oxygen tension condition, is a very common micro-environmental factor in physiological processes of blood circulation and various pathological processes such as cancer, chronic inflammation, heart attacks and stroke. In addition, an interplay between poor cellular deformability and impaired oxygen delivery is found in various pathological processes such as sickle cell disease. Sickle red blood cells simultaneously undergo drastic mechanical deformation during the sickling and unsickling process.

The interactions between hypoxia and cell biomechanics and the underlying biochemical mechanisms of the accelerated damage in diseased are well understood, however, the exact biomechanical consequences of hypoxia contributing to red cell degradation (aging) remains elusive.

Researchers from Florida Atlantic University’s College of Engineering and Computer Science, in collaboration with the Massachusetts Institute of Technology (MIT), sought to identify the role of hypoxia on red blood cell aging via the biomechanical pathways. In particular, they examined hypoxia-induced impairment of red blood cell deformability at the single cell level, compared the differences between non-cyclic hypoxia and cyclic hypoxia, and documented any cumulative effect vs. hypoxia cycles, such as aspects that have not been studied quantitatively. Red blood cell deformability is an important biomarker of its functionality.

Sep 20, 2021

Tapping sewage as a source of useful materials

Posted by in categories: biotech/medical, chemistry

face_with_colon_three Basically we simply waste chemicals that are sometimes used in compost but actually have literally millions of tons of chemicals gone to waste rather reclaiming these very expensive chemicals. For instance some medicine costs thousands of dollars to make and will not recycle completely even current compost problems are not seeing the literally value of wasted medical refuse dissolved in waste water. Literally possibly trillion dollars or more down the drain from waste but this new reclaiming system will reap the benefits 😗 Even new innovative recycled toilet paper is a new concept but someday even vital chemicals will not be wasted with these new reclaiming systems.


With sometimes offbeat technology, innovators seek to extract certain chemicals from municipal waste by.

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Sep 19, 2021

Dr. Ola Engkvist, Ph.D. — AstraZeneca — Head, Molecular AI, Discovery Sciences, R&D

Posted by in categories: biotech/medical, chemistry, robotics/AI

Applying Artificial Intelligence & Machine Learning In Drug Discovery & Design — Dr. Ola Engkvist Ph.D., Head, Molecular AI, Discovery Sciences, R&D, AstraZeneca


Dr. Ola Engkvist is Head of Molecular AI in Discovery Sciences, AstraZeneca R&D (https://www.astrazeneca.com/).

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Sep 17, 2021

Consciousness: Evolution of the Mind, Documentary (2021), Official Teaser Trailer

Posted by in categories: bioengineering, biotech/medical, chemistry, computing, education, genetics, neuroscience, quantum physics

Watch the full documentary on Vimeo on demand: https://vimeo.com/ondemand/339083

The study of consciousness needs to be lifted out of the mysticism that has dominated it. Consciousness is not just a matter of philosophy or spirituality. It’s a matter of hard science. It’s a matter of understanding the brain and the mind — a pattern structure made out of information. It’s also a matter of engineering. If we can understand the functionality of the brain, its neural code, then we can build the same functionality into our computer systems. There’s no consensus on what produces consciousness, but everyone regardless of metaphysical views can agree what it is like to be conscious. Given that consciousness is subjectivity, what consciousness is like is what consciousness is.

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Sep 17, 2021

Molnupiravir: coding for catastrophe

Posted by in categories: biotech/medical, chemistry

Molnupiravir, a wide-spectrum antiviral that is currently in phase 2/3 clinical trials for the treatment of COVID-19, is proposed to inhibit viral replication by a mechanism known as ‘lethal mutagenesis’. Two recently published studies reveal the biochemical and structural bases of how molnupiravir disrupts the fidelity of SARS-CoV-2 genome replication and prevents viral propagation by fostering error accumulation in a process referred to as ‘error catastrophe’.

Sep 16, 2021

Astrophysicists Identify “Significant Reservoirs” of Organic Molecules Necessary To Form the Basis of Life

Posted by in categories: alien life, chemistry, physics

Analysis of unique fingerprints in light emitted from material surrounding young stars has revealed “significant reservoirs” of large organic molecules necessary to form the basis of life, say researchers.

Dr. John Ilee, Research Fellow at the University of Leeds who led the study, says the findings suggest that the basic chemical conditions that resulted in life on Earth could exist more widely across the Galaxy.

The large organic molecules were identified in protoplanetary disks circling newly formed stars. A similar disk would have once surrounded the young Sun, forming the planets that now make up our Solar System. The presence of the molecules is significant because they are “stepping-stones” between simpler carbon-based molecules such as carbon monoxide, found in abundance in space, and more complex molecules that are required to create and sustain life.