Concrete beams made using fly ash and pond ash in low-carbon concrete mix met Australian standards for engineering.
Chinese researchers employ deep learning to enhance metalens image quality, unlocking its viability in versatile applications.
A new method to make organic semiconductors more conductive used oxygen as a dopant making it more scalable and cost-effective.
TikTok is testing the ability for users to upload 60-minute videos, the company confirmed to TechCrunch on Thursday. The feature is available to a limited group of users in select markets, and TikTok says it doesn’t have any immediate plans to make the feature available widely.
The feature, which was first spotted by social media consultant Matt Navarra, marks a shift from TikTok’s original format. The app allowed users to upload 15-second videos at launch, but TikTok has been increasing that limit over the past few years. While the company rose to popularity for its short-form video format, it has slowly been embracing long-form content to take on one of its biggest competitors: YouTube.
TikTok says that while creators can weave multipart stories together by telling viewers to go to part two or more of a story, it often hears from creators who want more time for things like cooking demos, beauty tutorials, educational lesson plans, comedic sketches and more.
Musk’s plan to use Chinese data to train algorithms aligns with the country’s ambitions to lead in autonomous driving technologies.
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Tuberous Sclerosis
Posted in biotech/medical, genetics, neuroscience
Tuberous sclerosis is a rare genetic disease that causes benign tumors to grow in the brain and other organs. The disease can be mild, or it can cause severe disabilities. Tuberous sclerosis has no cure, but treatments can help symptoms. More info here.
Tuberous sclerosis (TSC) is a rare genetic disease. It causes benign tumors in the brain and other organs. Learn about symptoms and what can help.
Photon-number distributions of various light sources have been studied extensively, but little is known about the statistical distribution of electrons emitted under the effect of intense quantum light.
However, researchers at the Max Planck Institute for the Science of Light (MPL) and Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have made a discovery that highlights this phenomenon.
Published in the journal Nature Physics, the study led by Prof. Maria Chekhova at MPL and Prof. Peter Hommelhoff at FAU reveals extreme and highly unusual statistical events in electron-number distributions obtained when nanometer-sized metal needle tips are illuminated with ultrashort pulses of bright quantum light.
An international research team has shown that phonons, the quantum particles behind material vibrations, can be classified using topology, much like electronic bands in materials. This breakthrough could lead to the development of new materials with unique thermal, electrical, and mechanical properties, enhancing our understanding and manipulation of solid-state physics.
An international group of researchers has found that quantum particles, which play a key role in the vibrations of materials affecting their stability and other characteristics, can be classified through topology. Known as phonons, these particles represent the collective vibrational patterns of atoms within a crystal structure. They create disturbances that spread like waves to nearby atoms. Phonons are crucial for several properties of solids, such as thermal and electrical conductivity, neutron scattering, and quantum states including charge density waves and superconductivity.
The spectrum of phonons—essentially the energy as a function of momentum—and their wave functions, which represent their probability distribution in real space, can be computed using ab initio first principle codes. However, these calculations have so far lacked a unifying principle. For the quantum behavior of electrons, topology—a branch of mathematics—has successfully classified the electronic bands in materials. This classification shows that materials, which might seem different, are actually very similar.
A History of Western Philosophy
Posted in materials, mathematics
“Mathematics, rightly viewed, possesses not only truth, but supreme beauty — a beauty cold and austere, like that of sculpture.”
- Bertrand Russell (1972 — 1970) A History of Western Philosophy
https://mathshistory.st-andrews.ac.uk/Biographies/Russell/
The book was written during the Second World War, having its origins in a series of lectures on the history of philosophy that Russell gave at the Barnes Foundation in Philadelphia during 1941 and 1942.[2] Much of the historical research was done by Russell’s third wife Patricia. In 1943, Russell received an advance of $3000 from the publishers, and between 1944 and 1945 he wrote the book while living at Bryn Mawr College. The book was published in 1946 in the United Kingdom and a year later in the US. It was re-set as a ‘new edition’ in 1961, but no new material was added. Corrections and minor revisions were made to printings of the British first edition and for 1961’s new edition; no corrections seem to have been transferred to the American edition (even Spinoza’s birth year remains wrong).