Category: Physics

[1] On the origin of gravity and the laws of Newton Starting from first principles and general assumptions we present a heuristic argument that shows that Newton’s law of gravitation naturally arises in a theory in which space emerges through a holographic scenario. Gravity is identified with an entropic force caused by changes in the information associated with the positions of material bodies. A relativistic generalization of the presented arguments directly leads to the Einstein equations. When space is emergent … Continue reading “Latest News on Newton’s Law : May 21”

[1] MEMS power generator with transverse mode thin film PZT A thin film lead zirconate titanate, Pb(Zr,Ti)O3 (PZT), MEMS power generating device is developed. It is designed to resonate at specific frequencies from an external vibrational energy source, thereby creating electrical energy via the piezoelectric effect. Our cantilever device is designed to have a flat structure with a proof mass added to the end. The Pt/Ti top electrode is patterned into an interdigitated shape on top of the sol–gel-spin coated PZT thin film in order to employ the d33 mode of … Continue reading “News Update on Power Generator : May 21”

Kodaira-Spencer theory of gravity and exact results for quantum string amplitudes We develop techniques to compute higher loop string amplitudes for twistedN=2 theories withĉ=3 (i.e. the critical case). An important ingredient is the discovery of an anomaly at every genus in decoupling of BRST trivial states, captured to all orders by a master anomaly equation. [1] Reconstruction of a Scalar-Tensor Theory of Gravity in an Accelerating Universe The present acceleration of the Universe strongly indicated by recent observational data can … Continue reading “News Update on Theory of Gravity : March – 2020”

Natural convective boundary-layer flow of a nanofluid past a vertical plate The natural convective boundary-layer flow of a nanofluid past a vertical plate is studied analytically. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. A similarity solution is presented. [1] Radiation effect on mixed convection along a vertical plate with uniform surface temperature This paper investigates the effect of radiation on the forced and free convection flow of an optically dense viscous incompressible fluid along a heated vertical flat … Continue reading “Latest Research News on Vertical Plate: March – 2020”