Welding welding was invented in 1893, and around that time another process, oxyfuel welding, became well established. Acetylene was discovered in 1836 by Edmund Davy, but its use was not practical in welding until about 1900, when a suitable torch was developed. At first, oxyfuel welding was one of the more popular welding methods due to its portability and relatively low cost. As the 20th century progressed, however, it fell out of favor for industrial applications. It was largely replaced with arc welding, as advances in metal coverings (known as flux) were made. Flux covering the electrode primarily shields the base
Ranga Dias (scientist) are not convinced that hydrogen has been squeezed to a metallic form inside a diamond-tipped anvil in this work. Ranga Dias (scientist) Ranga Dias is a Sri Lankan born scientist, physicist, researcher currently working in the Lyman Laboratory of Physics at Harvard University. He was graduated from Department of Physics, Colombo University Sri Lanka and moved to Washington, USA for Ph.D. work at Washington State University in the field of extreme condensed matter physics. During his Ph.D. research at Washington State University he discovered a new class of highly conducting metallic and superconducting polymers; his CV lists 7 papers published