our understanding of these processes is still poor
71Mass–energy equivalence — E=MC2 redirects here. For other uses, see E=MC2 (disambiguation). 4 meter tall sculpture of Einstein s 1905 E = mc2 formula at the 2006 Walk of Ideas, Berlin, Germany In physics, mass–energy equivalence is the concept that the …
72Sociocultural evolution — Cultural evolution redirects here. For gene culture coevolution, see Dual inheritance theory. Sociology …
73Evolutionary history of plants — Plants have evolved through increasing levels of complexity, from the earliest algal mats, through bryophytes, lycopods, ferns and gymnosperms to the complex angiosperms of today. While the simple plants continue to thrive, especially in the… …
74Organ transplantation — Intervention Cosmas and Damian miraculously transplant the (black) leg of a Moor onto the (white) body of Justinian. Ditzingen, 16th century ICD 10 PCS …
75Gamma-ray astronomy — is the astronomical study of the cosmos with gamma rays. Early history Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Eugene Feenberg… …
76Nobel Prize controversies — Nobel Prize Awarded for Outstanding contributions in physics, chemistry, literature, peace, and physiology or medicine. The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel, identified with the Nobel Prize, is awarded for… …
77Meta-epistemology — is a metaphilosophical study of the subject, matter, methods and aims of epistemology and of approaches to understanding and structuring our knowledge of knowledge itself. In epistemology, there are two basic meta epistemological approaches:… …
78Virus — This article is about the biological agent. For other uses, see Virus (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to viruses. Viruses …
79Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate …
80Origin of the Romanians — History of Romania This article is part of a series Prehistory …
