implausible hypothesis
1RNA world hypothesis — A comparison of RNA (left) with DNA (right), showing the helices and nucleobases each employs. The RNA world hypothesis proposes that life based on ribonucleic acid (RNA) pre dates the current world of life based on deoxyribonucleic acid (DNA),… …
2ancient Greek civilization — ▪ historical region, Eurasia Introduction the period following Mycenaean civilization, which ended in about 1200 BC, to the death of Alexander the Great, in 323 BC. It was a period of political, philosophical, artistic, and scientific… …
3Cyclol — Figure 1: In the classic cyclol reaction, two peptide groups are linked by a N C’ bond, converting the carbonyl oxygen into a hydroxyl group. Although this reaction occurs in a few cyclic peptides, it is disfavored by free energy, mainly because… …
4Doomsday argument — World population from 10,000 BC to AD 2000 The Doomsday argument (DA) is a probabilistic argument that claims to predict the number of future members of the human species given only an estimate of the total number of humans born so far. Simply… …
5metaphysics — /met euh fiz iks/, n. (used with a sing. v.) 1. the branch of philosophy that treats of first principles, includes ontology and cosmology, and is intimately connected with epistemology. 2. philosophy, esp. in its more abstruse branches. 3. the… …
6Jesus — This article is about Jesus of Nazareth. For other uses, see Jesus (disambiguation). Jesus …
7Objections to evolution — Part of a series on Evolutionary Biology …
8Autism — This article is about the classic autistic disorder; some writers use the word autism when referring to the range of disorders on the autism spectrum or to the various pervasive developmental disorders.[1] Autism …
9Quaternary extinction event — Late Pleistocene landscape of northern Eurasia The Quaternary period saw the extinctions of numerous predominantly larger, especially megafaunal, species, many of which occurred during the transition from the Pleistocene to the Holocene epoch.… …
10science, philosophy of — Branch of philosophy that attempts to elucidate the nature of scientific inquiry observational procedures, patterns of argument, methods of representation and calculation, metaphysical presuppositions and evaluate the grounds of their validity… …
