Yellow Supergaint Vs. Blue Straggler: Was J01020100-7122208 Really Ejected From Black Hole Or SMC? (Cosmology)

K. Hawkins and colleagues performed a detailed analysis of J01020100-7122208 with the goal of shedding light on its origin. They proposed that, instead of yellow super giant and red giant, it is probably an evolved blue straggler. Their study recently appeared in Arxiv. In 2018, astronomers using telescopes in northern Chile have discovered a rare runaway star … Continue reading Yellow Supergaint Vs. Blue Straggler: Was J01020100-7122208 Really Ejected From Black Hole Or SMC? (Cosmology)

Decoding How Salamanders Walk (Biology)

Researchers at Tohoku University and the Swiss Federal Institute of Technology in Lausanne, with the support of the Human Frontier Science Program, have decoded the flexible motor control mechanisms underlying salamander walking. Their findings were published in the journal Frontiers in Neurorobotics on July 30, 2021. Animals with four feet can navigate complex, unpredictable, and … Continue reading Decoding How Salamanders Walk (Biology)

Discovery of Huge Raman Scattering at Atomic Point Contact (Physics)

Nanofabrication of electronic devices has reached a single nanometer scale (10-9 m). The rapid advancement of nanoscience and nanotechnology now requires atomic-scale optical spectroscopy in order to characterize atomistic structures that will affect the properties and functions of the electronic devices. The international team headed by Takashi Kumagai at Institute for Molecular Science discovered a huge … Continue reading Discovery of Huge Raman Scattering at Atomic Point Contact (Physics)

Is It A Wormhole Which Is Expanding?: PART 2: Blackhole Collapse vs. Inflation (Astronomy)

Previously on “Is it a wormhole which is expanding?: PART 1”, we saw that in 1999, Sean hayward proposed a concept that if wormhole negative energy source fails it may collapse into a black hole. He used 3-step penrose diagrams in order to explain this process. Along with all these concepts, he also proposed that … Continue reading Is It A Wormhole Which Is Expanding?: PART 2: Blackhole Collapse vs. Inflation (Astronomy)

Is It a Wormhole, Which Is Expanding?: PART 1: Blackholes vs. Wormholes (Astronomy)

In 1999, Sean Hayward proposed a framework for general dynamic wormholes, unifying them with black holes. Both are generically defined locally by outer trapping horizons, temporal for wormholes and spatial or null for black and white holes. Thus, wormhole horizons are two-way traversible, while black-hole and white-hole horizons are only one-way traversible. It follows from … Continue reading Is It a Wormhole, Which Is Expanding?: PART 1: Blackholes vs. Wormholes (Astronomy)

Astronomers Unveil the Internal Structure of Hercules Supercluster (Cosmology)

Monteiro-Oliveira and colleagues investigated the structure of the Hercules supercluster (SCL160) based on data originally extracted from the Sloan Digital Sky Survey SDSS-DR7. They have confirmed that the Hercules supercluster is composed of the galaxy clusters A2147, A2151, and A2152 and these galaxy clusters composed of subclusters. Their study recently appeared in Arxiv. The Hercules Superclusters (SCl … Continue reading Astronomers Unveil the Internal Structure of Hercules Supercluster (Cosmology)

How Many Informational Bits Are In The Universe If It is A Gaint Computer Simulation? (Cosmology)

Using Shannon’s equations, Melvin M. Vopson calculated that a proton or neutron should contain the equivalent of 1.509 bits of encoded information. He then derived an estimate for the total number of particles in the observable universe — around 1080, which accords with previous estimates — to determine the total information content of the cosmos. … Continue reading How Many Informational Bits Are In The Universe If It is A Gaint Computer Simulation? (Cosmology)

Can Particles Escape Through Black Hole? (Cosmology)

Can particles escape through the black hole? I know most of you will say ‘no’. But, what if I say its possible and that is shown by Ondrej Kopacek et al. in their recent studies. In previous study, by adopting a simple axisymmetric model consisting of a rotating black hole in an asymptotically uniform magnetic … Continue reading Can Particles Escape Through Black Hole? (Cosmology)

Why Nearly No Adhesive Interaction Forces Between the Asteroid Fragments? (Planetary Science)

Most asteroids with a diameter larger than ∼300 m are rubble piles i.e. consisting of more than one solid object. All asteroids are rotating but almost all asteroids larger than ∼300 m rotate with a period longer than 2.3 hours, which is the critical period where the centrifugal force equals the gravitational force. This indicates that there are nearly no adhesive interaction forces … Continue reading Why Nearly No Adhesive Interaction Forces Between the Asteroid Fragments? (Planetary Science)