Death by black hole Black holes are expected to form when a massive star dies. After the star’s nuclear fuel is exhausted, its core collapses to the densest state of matter imaginable, a hundred times denser than an atomic nucleus.

Sectionalism in the 1800s In the early 1800s, sectionalism between the North and the South was based on slavery. The states of the North had become anti-slavery and the states of the South became slavery supporters.

As in the South, this raised accusations that the war had become “a rich man’s war but a poor man’s fight.” Nevertheless, in both North and South, statistics indicate that wealthy men were represented in the service in at least the same proportion as they were in the general population.

Top 10 Strangest Things in Space

• Cosmic Microwave Background. NASA/WMAP Science Team.
• Dark Matter. Andrey Kravtsov.
• Exoplanets. ESO.
• Gravity Waves. Henze/NASA.
• Galactic Cannibalism. NASA; ESA; Z.
• Neutrinos. The Asahi Shimbun/Getty.
• Quasars. NASA-MSFC.
• Vacuum Energy. NASA-JSC.

9.9 trillion degrees Fahrenheit

A temperature below absolute zero: Atoms at negative absolute temperature are the hottest systems in the world. Summary: At zero kelvin (minus 273 degrees Celsius) the particles stop moving and all disorder disappears. Thus, nothing can be colder than absolute zero on the Kelvin scale.

Absolute zero, technically known as zero kelvins, equals −273.15 degrees Celsius, or -459.67 Fahrenheit, and marks the spot on the thermometer where a system reaches its lowest possible energy, or thermal motion. There’s a catch, though: absolute zero is impossible to reach.

Hypothermia can happen in minutes Hypothermia can develop in as little as five minutes in temperatures of minus 50 degrees Fahrenheit if you’re not dressed properly and have exposed skin, especially the scalp, hands, fingers, and face, Glatter explained. At 30 below zero, hypothermia can set in in about 10 minutes.

Any temperature scale having absolute zero for its zero point is termed an absolute temperature scale or a thermodynamic scale. In the International System of Units, the Kelvin (K) scale is the standard for all scientific temperature measurements.

Absolute zero cannot be achieved, although it is possible to reach temperatures close to it through the use of cryocoolers, dilution refrigerators, and nuclear adiabatic demagnetization. The use of laser cooling has produced temperatures less than a billionth of a kelvin.

Negative absolute temperatures (or negative Kelvin temperatures) are hotter than all positive temperatures – even hotter than infinite temperature.

Absolute hot is a theoretical upper limit to the thermodynamic temperature scale, conceived as an opposite to absolute zero.

By international agreement, absolute zero is defined as precisely; 0 K on the Kelvin scale, which is a thermodynamic (absolute) temperature scale; and –273.15 degrees Celsius on the Celsius scale.

To solve for the value of absolute zero, use the equation for a line, y = mx + b. Absolute zero is the temperature at which the gas’s pressure equals zero. This is the line’s x-intercept. To calculate this value, set y = 0, substitute in the value of the slope, and solve for x.