Matter & Energy
Superconductors are something of a holy grail to electronic scientists and engineers. They are materials that conduct electricity in the absence of resistance. This property, while vital to certain components and techniques, is largely responsible for losses and limits to the movement of electrons on which modern automatic, computerized and mechanized devices depend. The ability to produce superconductors that could work in ambient conditions could usher a new revolution in these products, their capabilities, and power, in general.
Nuclear fusion is a concept for power generation that has been around for some time. These days, research and development in this area are done using up-to-date reactors called tokamaks. These installations may provide the data and insights necessary to bring fusion back into the 21st century.
Hydrogen is a leading contender for the energy source of the future. However, the technology behind its delivery and deployment is nowhere near consumer-level yet. Hydrogen-power scientists are still working out issues to make their solutions safer and more efficient. One of the factors holding hydrogen back is the puzzling inability to get the substance to stay in the storage media intended for it.
It is fortunate that scientists discovered anti-freeze proteins (AFPs). Otherwise, the way in which insects survive freezing conditions would be an impenetrable mystery to us. Insects lack things such as hair, fur or blubber, therefore, making it impossible for them to live in cold climates without AFPs. These proteins have evolved to prevent lethal ice crystals forming within insect bodies. For a long time, this phenomenon was explained using the ‘anchored clathrate’ theory of water molecule ordering.
Scotland is a good example of a country that is making a commitment to a future with greener, more sustainable energy. The nation has increased its volume of off-shore wind farms by 37%, recently. However, this investment only means so much in the context of the weather. In calm weather, Scotland may need back-ups in the form of batteries in order to keep constant the current flowing through its grid.
It seems that diamonds grown in a lab will have many roles to play in the electronics and engineering of the future. This could be because these precious stones contain (necessary) defects, often worked into the diamonds to order.
The defects are created when a non-carbon atom takes the place of a carbon atom in the orderly molecular lattice that normally makes a diamond. Nitrogen vacancies (NVs), for example, have drawn some attention due to their potential in diagnostics, and their ability to emit red light when green light hits them, which has potential analytical value.
Kirigami is a form of art in which paper is deformed and bent into the desired shape. Originating in Japan, it is similar to origami, with the exception that cutting is also permitted in this discipline.
The principles of kirigami can also be applied to the cutting or impression of patterns into thin layers of metals, most often gold. This has been one of the goals of physicists as the results from this technique can be used to bend light at the nanoscale, and also to prove that such precise work is possible.
Nuclear fusion was once thought of as the ‘holy grail’ of energy-generation and delivery. This kind of reaction involves the formation of two- or three-atom molecules of pure hydrogen, then pressing these together to form new atoms of helium, most often. Fusion has potentially desirable side-effects, such as the release of energy in the form of heat at astronomical temperatures.
"Reality is merely an illusion, albeit a very persistent one." - Albert Einstein
Scientists have created a tiny drum that can vibrate and stand still, simultaneously. A team of researchers from the UK and Australia has developed a novel technique that could help understand the boundary between the quantum world and our everyday, classical, world.
Uranium is a heavy metal that is found in nature as U-238 and U-235, and in traces, as U-234. Since the half-life of this element is about 4.5 billion years, it has been useful in determining the age of the Earth. Past research has also indicated that some radioactive isotopes of uranium could possess nuclear properties and cause radiolysis on other planets too.
What Do Atomic Nuclei Really Look Like? Theoretical Physicists Bring Us Closer To The Answer Than Ever Before
What do atoms really look like in nature?
We tend to visualize these particles as electrons orbiting a spherical nucleus in defined, concentric shells, like the diagrams seen in many chemistry and physics textbooks.
There are very few pure elements that have magnetic properties. This limits the options for those in the areas of engineering, manufacturing, and electronics. It may also put pressure on the reserves of those elements known to have magnetism (or ferromagnetism, as it is technically termed) – i.e., iron, nickel, and cobalt.
However, a new paper in Nature Communications has claimed that element ruthenium exhibited these desirable properties in a new experimental conformation.
Internal bleeding should be taken seriously, and not just because it could indicate signs of severe trauma. This form of hemorrhage, which occurs in blood vessels far away from the skin (e.g., between internal organs) can deprive tissues affected of nutrients and oxygen, thus, increasing the risk of adverse events such as ischemia or necrosis.
Inorganic semiconductors are potentially useful in many areas of electronics and industry. Unfortunately, they tend to be disadvantaged in their reduced flexibility or plasticity. Therefore, they can snap or break apart under the forces necessary to form or bend them.
Storm Emma, which occurred in early 2018 in the UK, may have stressed the importance of heat conservation for the many people affected by it.
Modern dwellings can be insulated by incorporating thin sheets of aerogel or Styrofoam into building shells during construction. However, these materials are synthetic and can represent environmental damage in their manufacture or disposal.
If scientists from the future were to be asked about the significant discoveries of the 2010s, the term 'time crystal' would probably be at the top of that list.
Time crystals are solid compounds in which some atoms have been observed to "tick" regularly when exposed to electromagnetic fields.
The definition may sound a little underwhelming. However, it is the first example of atoms behaving in this manner.
In addition, time crystals may have many important roles in the electronics and engineering of the future.