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  2. List of periods and events in climate history - Wikipedia

    en.wikipedia.org/wiki/List_of_periods_and_events...

    7000–3000: Holocene climatic optimum, or Atlantic in northern Europe (B-S) 6200: 8.2-kiloyear event cold 5000–4100: Older Peron warm and wet, global sea levels were 2.5 to 4 meters (8 to 13 feet) higher than the twentieth-century average 3900: 5.9 kiloyear event dry and cold. 3500

  3. Temperature record of the last 2,000 years - Wikipedia

    en.wikipedia.org/wiki/Temperature_record_of_the...

    The temperature on land rose by 1.59 °C while over the ocean it rose by 0.88 °C. [3] In 2020 the temperature was 1.2 °C above the pre-industrial era. [4] In September 2023 the temperature was 1.75 °C above pre-industrial level and during the entire year of 2023 is expected to be 1.4 °C above it. [5]

  4. Oral-B - Wikipedia

    en.wikipedia.org/wiki/Oral-B

    Oral-B is an American brand of oral hygiene products, including toothpastes, toothbrushes, electric toothbrushes, and mouthwashes. The brand has been in business since the invention of the Hutson toothbrush in 1950 and in Redwood City, California .

  5. Geologic temperature record - Wikipedia

    en.wikipedia.org/wiki/Geologic_temperature_record

    The geologic temperature record are changes in Earth's environment as determined from geologic evidence on multi-million to billion (10 9) year time scales. The study of past temperatures provides an important paleoenvironmental insight because it is a component of the climate and oceanography of the time.

  6. Isothermal transformation diagram - Wikipedia

    en.wikipedia.org/wiki/Isothermal_transformation...

    Time-Temperature-Transformation diagram for two steels: one with 0.4% wt. C (red line) and one with 0.4% wt. C and 2% weight Mn (green line). P = pearlite, B = bainite and M = martensite. Isothermal transformation diagrams (also known as time-temperature-transformation ( TTT ) diagrams ) are plots of temperature versus time (usually on a ...

  7. Brightness temperature - Wikipedia

    en.wikipedia.org/wiki/Brightness_temperature

    Brightness temperature or radiance temperature is a measure of the intensity of electromagnetic energy coming from a source. [1] In particular, it is the temperature at which a black body would have to be in order to duplicate the observed intensity of a grey body object at a frequency ν {\displaystyle \nu } . [ 2 ]

  8. How to Know Which Light Bulb Temperature to Choose - AOL

    www.aol.com/know-light-bulb-temperature-choose...

    The higher the kelvin rating, the colder the color temperature. Bright or cool white light ranges from 7,000K to 10,000K. This light is great in dimly lit spaces like garages, attics, and work ...

  9. Timeline of glaciation - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_glaciation

    Geologic time scale – System that relates geologic strata to time; Glacial history of Minnesota; Glacial period – Interval of time within an ice age that is marked by colder temperatures and glacier advances; Ice age – Period of long-term reduction in temperature of Earth's surface and atmosphere