All articles tagged with #double helix
A Nature Communications study using CT, diffraction, SAXS, tensor tomography and microscopy shows narwhal tusks contain two spirals—cementum left-handed and dentine right-handed—forming a double helix that gives exceptional stiffness and straight growth, and may record environmental changes across a whale's lifetime.
James Watson, co-discoverer of the DNA double helix and a Nobel laureate, has died at age 97. His groundbreaking work revolutionized biology and medicine, but his legacy is also marked by controversial remarks on race. Watson's discovery of DNA's structure in 1953 laid the foundation for modern genetics, gene editing, and forensic science, influencing countless scientific advancements. Despite his achievements, his later life was marred by offensive statements, leading to professional censure and a complex legacy.
James D Watson, co-discoverer of the DNA double helix structure and Nobel laureate, has died at age 97. His groundbreaking work revolutionized biology and medicine, but his later years were marred by controversial remarks on race. Watson's discovery laid the foundation for modern genetics, DNA analysis, and ethical debates in science.
Researchers at Caltech have discovered a new stable equilibrium state of braided magnetic flux ropes, called a double helix, which applies to structures from solar prominences to nebulae, and developed a mathematical model that accurately describes their behavior across vastly different scales, from laboratory experiments to light-year-sized astrophysical phenomena.