SciTech Express

A competing theory to 'dark energy' suggests the universe has different time zones Recent cosmological research has introduced alternative theories to dark energy, suggesting that variations in the flow of time across different regions of the universe could account for the observed accelerated expansion. These theories propose that the universe may have "different time zones," where time progresses at varying rates depending on the density of matter and gravitational energy in a given region. Alternative Theories to Dark Energy 1. Timescape Cosmology Concept : Proposed by physicist David L. Wiltshire, timescape cosmology posits that the universe is not homogeneous; instead, it consists of regions with varying matter densities. This inhomogeneity leads to differences in the passage of time between dense regions (like galaxies) and vast, empty voids. Gravitational Time Dilation : In areas with higher matter density, stronger gravitational fields cause time to flow more ...

Graphene: The Wonder Material with Quantum Potential Recent Discovery Researchers have discovered a new quantum state in twisted bilayer-trilayer graphene. Electrons in this state form a lattice but still allow resistance-free edge currents , making it valuable for quantum computing . This discovery enhances stability against noise , a major challenge in quantum computing. What is Graphene? Graphene is a single layer of carbon atoms arranged in a hexagonal honeycomb lattice . It is an allotrope of carbon , like graphite and diamond. Key Properties of Graphene Thinnest & Lightest Material Only one atom thick . 1,000 times lighter than paper. Strongest Known Material 200 times stronger than steel . High Conductivity Conducts electricity better than copper. High thermal conductivity . Highly Transparent 98% transparent to light. Flexible and Stretchable Can be used in bendable electronics . Chemically Stable & Impermeable Does not react easily and prevents gas or liquid pene...

Neutrinos: The Elusive Subatomic Particles Neutrinos are one of the most mysterious and fundamental particles in the universe. Their unique properties make them both challenging to study and crucial for understanding fundamental physics. What are Neutrinos? Subatomic Particles : Neutrinos are elementary particles belonging to the lepton family. Charge & Mass : They have no electric charge and an extremely small mass , which is nearly zero but not exactly. Types of Neutrinos : There are three known types (flavors) of neutrinos: Electron Neutrino (νe) Muon Neutrino (νμ) Tau Neutrino (ντ) Anti-Neutrinos : Each neutrino has an antimatter counterpart called an anti-neutrino . Why are Neutrinos Important? Universe’s Abundant Particle : Neutrinos are the second most abundant particles in the universe, after photons. Trillions of neutrinos pass through every human body each second without any interaction. Fundamental to Physics : Neutrinos provide insights into weak nuclear interactions...