Anger is an emotion related to one's psychological interpretation of having been offended, wronged or denied and a tendency to undo that by retaliation. Videbeck describes anger as a normal emotion that involves a strong uncomfortable and emotional response to a perceived provocation. R. Novaco recognized three modalities of anger: cognitive (appraisals), somatic-affective (tension and agitations) and behavioral (withdrawal and antagonism). DeFoore. W 2004^{[clarification needed]} describes anger as a pressure cooker; we can only apply pressure against our anger for a certain amount of time until it explodes. Anger may have physical correlates such as increased heart rate, blood pressure, and levels of adrenaline and noradrenaline. Some view anger as part of the fight or flight brain response to the perceived threat of harm. Anger becomes the predominant feeling behaviorally, cognitively, and physiologically when a person makes the conscious choice to take action to immediately stop the threatening behavior of another outside force. The English term originally comes from the term anger of Old Norse language. Anger can have many physical and mental consequences.

The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields. It has a diameter of about 1,392,000 km, about 109 times that of Earth, and its mass (about 2×10³⁰ kilograms, 330,000 times that of Earth) accounts for about 99.86% of the total mass of the Solar System. Chemically, about three quarters of the Sun's mass consists of hydrogen, while the rest is mostly helium. The remainder (1.69%, which nonetheless equals 5,628 times the mass of Earth) consists of heavier elements, including oxygen, carbon, neon and iron, among others.

The Sun's stellar classification, based on spectral class, is G2V, and is informally designated as a yellow dwarf, because its visible radiation is most intense in the yellow-green portion of the spectrum and although its color is white, from the surface of the Earth it may appear yellow because of atmospheric scattering of blue light. In the spectral class label, G2 indicates its surface temperature of approximately 5778 K (5505 °C), and V indicates that the Sun, like most stars, is a main-sequence star, and thus generates its energy by nuclear fusion of hydrogen nuclei into helium. In its core, the Sun fuses 620 million metric tons of hydrogen each second. Once regarded by astronomers as a small and relatively insignificant star, the Sun is now thought to be brighter than about 85% of the stars in the Milky Way galaxy, most of which are red dwarfs. The absolute magnitude of the Sun is +4.83; however, as the star closest to Earth, the Sun is the brightest object in the sky with an apparent magnitude of −26.74. The Sun's hot corona continuously expands in space creating the solar wind, a stream of charged particles that extends to the heliopause at roughly 100 astronomical units. The bubble in the interstellar medium formed by the solar wind, the heliosphere, is the largest continuous structure in the Solar System.

A congress is a formal meeting of the representatives of different nations, constituent states, independent organizations (such as trade unions), or groups.

The term was chosen for the United States Congress to emphasize the status of each state represented there as a self-governing unit. Subsequent to the use of congress by the U.S. legislature, the term has been adopted by many states within unions, and by unitary nation-states in the Americas, to refer to their legislatures.

The following congresses were formal meetings of representatives of different nations:

Countries with Congresses and presidential systems:

Congress is included in the name of several political parties, especially those in former British colonies:

Many political parties also have a party congress every few years to make decisions for the party and elect governing bodies. This is sometimes called a political convention.

Congress is an alternative name for a large national or international academic conference.

For instance, the World Congress on Men's Health WCMH is an annual meeting on men's medical issues.