Agnosticism is the view or belief that the existence of God, the divine, or the supernatural is either unknowable in principle or unknown in fact. It can also mean an apathy towards such religious belief and refer to personal limitations rather than a worldview. Another definition is the view that "human reason is incapable of providing sufficient rational grounds to justify either the belief that God exists or the belief that God does not exist."
In quantum mechanics, an atomic orbital is a function describing the location and wave-like behavior of an electron in an atom. This function describes an electron's charge distribution around the atom's nucleus, and can be used to calculate the probability of finding an electron in a specific region around the nucleus.
In atomic physics, the Bohr model or Rutherford–Bohr model was the first successful model of the atom. Developed from 1911 to 1918 by Niels Bohr and building on Ernest Rutherford's nuclear model, it supplanted the plum pudding model of J J Thomson only to be replaced by the quantum atomic model in the 1920s. It consists of a small, dense nucleus surrounded by orbiting electrons. It is analogous to the structure of the Solar System, but with attraction provided by electrostatic force rather than gravity, and with the electron energies quantized.
Secular humanism is a philosophy, belief system, or life stance that embraces human reason, logic, secular ethics, and philosophical naturalism, while specifically rejecting religious dogma, supernaturalism, and superstition as the basis of morality and decision-making.
Irreligion is the absence or rejection of religious beliefs or practices. It encompasses a wide range of viewpoints drawn from various philosophical and intellectual perspectives, including atheism, agnosticism, religious skepticism, rationalism, secularism, and non-religious spirituality. These perspectives can vary, with individuals who identify as irreligious holding diverse beliefs about religion and its role in their lives.
State atheism or atheist state is the incorporation of hard atheism or non-theism into political regimes. It is considered the opposite of theocracy and may also refer to large-scale secularization attempts by governments. To some extent, it is a religion-state relationship that is usually ideologically linked to irreligion and the promotion of irreligion or atheism. State atheism may refer to a government's promotion of anti-clericalism, which opposes religious institutional power and influence in all aspects of public and political life, including the involvement of religion in the everyday life of the citizen. In some instances, religious symbols and public practices that were once held by religions were replaced with secularized versions of them. State atheism in these cases is considered as not being politically neutral toward religion, and therefore it is often considered non-secular.
Jewish atheism is the atheism of people who are ethnically and culturally Jewish.
Atheism is the rejection of an assertion that a deity exists. In a narrower sense, positive atheism is specifically the position that there are no deities, effectively taking the stance of a positive claim in regards to the existence of any goddess or god. The English term 'atheist' was used at least as early as the sixteenth century and atheistic ideas and their influence have a longer history.
Criticism of atheism is criticism of the concepts, validity, or impact of atheism, including associated political and social implications. Criticisms include positions based on the history of science, philosophical and logical criticisms, findings in both the natural and social sciences, theistic apologetic arguments, arguments pertaining to ethics and morality, the effects of atheism on the individual, or the assumptions that underpin atheism.
Some movements or sects within traditionally monotheistic or polytheistic religions recognize that it is possible to practice religious faith, spirituality and adherence to tenets without a belief in deities. People with what would be considered religious or spiritual belief in a supernatural controlling power are defined by some as adherents to a religion; the argument that atheism is a religion has been described as a contradiction in terms.
Accurate demographics of atheism are difficult to obtain since conceptions of atheism vary considerably across different cultures and languages, ranging from an active concept to being unimportant or not developed. Also in some countries and regions atheism carries a strong stigma, making it harder to count atheists in these countries. In global studies, the number of people without a religion is usually higher than the number of people without a belief in a deity and the number of people who agree with statements on lacking a belief in a deity is usually higher than the number of people who self-identify as "atheists".
The Trouble with Atheism is an hour-long documentary on atheism, presented by Rod Liddle. It was broadcast on Channel 4 in Britain in December 2006. The documentary focuses on criticising atheism for its perceived similarities to religion, as well as arrogance and intolerance. The programme includes interviews with a number of prominent scientists, including atheists Richard Dawkins and Peter Atkins and Anglican priest John Polkinghorne. It also includes an interview with Ellen Johnson, the president of American Atheists.
The following outline is provided as an overview of and topical guide to atheism:
Christian atheism is an ideology that embraces the teachings, narratives, symbols, practices, or communities associated with Christianity without accepting the literal existence of God. It often overlaps with nontheism and post-theism.
The Out Campaign is a public awareness initiative for freethought and atheism in the US. It was initiated by Robin Elisabeth Cornwell, and is endorsed by Richard Dawkins, a prominent atheist. The campaign aims to create more openness about being an atheist by providing a means by which atheists can identify themselves to others by displaying the movement's scarlet letterA, a scarlet colored capital "A" in the Zapfino typeface, and an allusion to the scarlet letter A worn by Hester Prynne after being convicted of adultery in Nathaniel Hawthorne's The Scarlet Letter. It encourages those who wish to be part of the campaign to come out and re-appropriate, in a humorous way, the social stigma that in some places persists against atheism, by branding themselves with a scarlet letter.
Atheism, in the broadest sense, is an absence of belief in the existence of deities. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there are no deities. Atheism is contrasted with theism, which is the belief that at least one deity exists.
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment. After the discovery of the neutron in 1932, models for a nucleus composed of protons and neutrons were quickly developed by Dmitri Ivanenko and Werner Heisenberg. An atom is composed of a positively charged nucleus, with a cloud of negatively charged electrons surrounding it, bound together by electrostatic force. Almost all of the mass of an atom is located in the nucleus, with a very small contribution from the electron cloud. Protons and neutrons are bound together to form a nucleus by the nuclear force.
A 2023 poll by the Pew Research Center found that 4% of Americans in the United States self-identified as atheists. This is an increase from 3.1% of Americans in 2014. However, in 2014, 9% of Americans agreed with the statement "Do not believe in God" while 2% agreed with the statement "Do not know if they believe in God". According to a poll by non-profit PRRI in 2023, 4% of Americans were atheist and 5% were agnostic. Polling by Gallup in 2022 showed that 17% of respondents replied "No" when asked "Do you believe in God?" in a binary fashion, but when worded differently in 2023, Gallup found that 12% of respondents replied they "Do not believe in" God and 14% replied they were "Not sure about" the existence of God. According to Gallup, there are variations in their polling results because they ask about God in three different wordings, each with a different result.
The term New Atheism describes the positions of some atheist academics, writers, scientists, and philosophers of the 20th and 21st centuries. New Atheism advocates the view that superstition, religion, and irrationalism should not be tolerated. Instead, they advocate the antitheist view that the various forms of theism should be criticised, countered, examined, and challenged by rational argument, especially when they exert strong influence on the broader society, such as in government, education, and politics.
Ian Horner Hutchinson is a nuclear engineer and physicist who is currently Professor of Nuclear Science and Engineering at the Massachusetts Institute of Technology. He has made a number of important contributions to the fields of nuclear engineering and nuclear physics and has also written about the philosophy of science and the relationship between religion and science.
