Apparent temperature, also known as feels like, is the temperature equivalent perceived by humans, caused by the combined effects of air temperature, relative humidity and wind speed. The measure is most commonly applied to the perceived outdoor temperature. Apparent temperature was invented by who published a paper about it in 1984. However, it also applies to indoor temperatures, especially saunas, and when houses and workplaces are not sufficiently heated or cooled. * The heat index and humidex measure the effect of humidity on the perception of temperatures above +27 °C (81 °F). In humid conditions, the air feels much hotter, because less perspiration evaporates from the skin. * The wind chill factor measures the effect of wind speed on cooling of the human body below 10 °C (50 °F). As airflow increases over the skin, more heat will be removed. Standard models and conditions are used. * The wet-bulb globe temperature (WBGT) combines the effects of radiation (typically sunlight), humidity, temperature and wind speed on the perception of temperature. It is not often used, since its measurement requires the use of a globe thermometer exposed to the sun, which is not included in standard meteorological equipment used in official weather conditions reporting (nor are, in most cases, any other explicit means of measuring solar radiation; temperature measurement takes place entirely in a shade box to avoid direct solar effects). It also does not have an explicit relationship with the perceived temperature a person feels; when used for practical purposes, the WBGT is linked to a category system to estimate the threat of heat-related illness. Since there is no direct measurement of solar radiation in U.S. observation systems, and solar radiation can add up to 15 °F (8.3 °C) to the apparent temperature, commercial weather companies have attempted to develop their own proprietary apparent temperature systems, including The Weather Company's "FeelsLike" and AccuWeather's "RealFeel". These systems, while their exact mechanisms are trade secrets, are believed to estimate the effect of solar radiation based on the available meteorological data that is reported (such as UV index and cloud cover). (Wikipedia).
Physics - Thermodynamics 1: Ch 24.1 Variable Heat Transfer (15 of 25) Equilibrium Temp. of Earth
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the equilibrium temperature=? of Earth with the amount of the energy it receives from the Sun, and compare it to the actual temperature of Earth. Next video in this series can be seen at: https:
From playlist PHYSICS 24.1 VARIABLE HEAT TRANSFER
Astronomy - Ch. 9.1: Earth's Atmosphere (33 of 61) What is the Diurnal Temperature Range?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is the diurnal temperature range. It is the range of the lowest temperature in a 24-hour period to the highest temperature in the same 24 hours. I will also explain why the smaller the ra
From playlist THE GREENHOUSE EFFECT
Physics - Thermodynamics 1: Ch 24.1 Variable Heat Transfer (13 of 25) Equilibrium Temperature
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the equilibrium temperature=? of an object in a 0K environment that receives radiation from an object in one direction only. It's sort of like Earth receiving radiation from our Sun. Next video
From playlist PHYSICS 24.1 VARIABLE HEAT TRANSFER
Physics - Thermodynamics 1: Ch 24.1 Variable Heat Transfer (14 of 25) Equilibrium Temp. of Jupiter
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the equilibrium temperature=? of Jupiter with the amount of the energy it receives from the Sun, and compare it to the actual temperature of Jupiter. Next video in this series can be seen at: ht
From playlist PHYSICS 24.1 VARIABLE HEAT TRANSFER
Astronomy - Ch. 5: Light & E&M Radiation (6 of 30) Difference of E&M Frequence
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the different frequencies of electromagnetic radiation.
From playlist ASTRONOMY 5 LIGHT AND RADIATION
Teach Astronomy - Apparent Brightness
http://www.teachastronomy.com/ Apparent Brightness in astronomy is the number of photons per second collected at the Earth from an astronomical source. It depends on three things: First, the collecting area of the device used to observe the source of light. In the case of a telescope, t
From playlist 14. Stars
Physics: Ch 24C -Heat Radiation: Test Your Knowledge (5 of 20) What is the Temperature of the Sun?
Visit http://ilectureonline.com for more math and science lectures! http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will calculate the temperature=? of the Sun using the Stefan-Boltzmann Law. Next video in this series can be seen at: https://youtu.be/f-db2
From playlist PHYSICS 24C HEAT RADIATION: TEST YOUR KNOWLEDGE
Star Classification - A Level Physics
Star classification covering luminosity, intensity, apparent and absolute magnitude, standard candles, spectral classification, Wien's Law, Stefan's Law and the Hertzsprung Russell diagram
From playlist A Level Physics Revision
Astronomy - Ch. 9.1: Earth's Atmosphere (6 of 61) Atmospheric Temperature Gradient
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the various “layers” of Earth's atmosphere and it's various temperature gradient. I will explain why Earth's temperature decreases, stays constant, increases, stays constant, decreases, stays
From playlist THE GREENHOUSE EFFECT
HR (Hertzsprung Russell) Diagram - how stars are classified based on magnitude & temperature
In this video I review the HR (or Hertzsprung Russell) Diagram. Quickly reviewing the concepts of brightness and colour of a star, I show you how we can classify stars and how that leads to better understanding of the nature of stars. See my separate videos on Magnitude - https://youtu.
From playlist Astronomy
Converting Temperature Between Celsius and Fahrenheit
This video derives the formulas used to convert temperature between Celsius and Fahrenheit and the provided conversion examples. Search Complete Video Library at www.mathispower4u.wordpress.com
From playlist Unit Conversions: Converting Between Standard and Metric Units
Astronomy - Ch. 17: The Nature of Stars (33 of 37) Determining Stellar Radii (Luminosity of Sirius)
Visit http://ilectureonline.com for more math and science lectures! In this video I will calculates the luminosity ratio of Sirius to our Sun. Next video can be seen at: http://youtu.be/At46UroogIg
From playlist ASTRONOMY 17 STARS AND THE H-R DIAGRAM
Is space-time fragmented, segmented into quantized bits of information, or causal sets? Or is space-time smooth and continuous, with curves, bends, and warps; just as Einstein had predicted? Is what we call space-time even part of objective reality or is it just a mathematical construct
From playlist Science
Phase Diagram of Glass Forming Liquids with Randomly Pinned Particles by Smarajit Karmakar
Discussion Meeting: Nonlinear Physics of Disordered Systems: From Amorphous Solids to Complex Flows URL: http://www.icts.res.in/discussion_meeting/NPDS2015/ Dates: Monday 06 Apr, 2015 - Wednesday 08 Apr, 2015 Description: In recent years significant progress has been made in the physics
From playlist Discussion Meeting: Nonlinear Physics of Disordered Systems: From Amorphous Solids to Complex Flows
From playlist Courses and Series
EEVblog #1207 - ARM Dev Boards Falling From The Sky!
Hackable STM32 based ARM RF dev boards are literally falling from the sky! A teardown of two weather balloon Vaisala radiosondes, the RS41 and RS92. Repurposing tre RS41: http://www.om3bc.com/docs/rs41/rs41_en.html Github: https://github.com/bazjo Conference Talk: https://www.youtube.com
From playlist Teardown Tuesday
Michel Mayor - Extrasolar planets: from gaseous giant planets to rocky planets 🔭
Discoveries done during the last two decades have revealed the impressive diversity of extrasolar planetary systems. A diversity challenging our understanding of mechanisms of formation and evolution. Today, great efforts are made to detect Earth-mass rocky planets in the so-called habita
From playlist CERN Academic Lectures
Warming up with Brooks - The Rust Book part 7
Live stream where I (Brooks) wake myself up in the morning with silly side projects and algorithm practice. This stream is scheduled for 7am Mountain Time every weekday. I tweet out shortly before I begin each stream, and definitely if I am going to miss a stream. Currently I am learning
From playlist Rust Book
Physics - Thermodynamics: Radiation: Heat Transfer (8 of 11) Earth's Equilibrium Temperature
Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to calculate the Earth's equilibrium temperature.
From playlist PHYSICS - THERMODYNAMICS
Lec 19 | MIT 3.091 Introduction to Solid State Chemistry
Defects in Crystals: Point Defects, Line Defects, Interfacial Defects, Voids View the complete course at: http://ocw.mit.edu/3-091F04 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 3.091 Introduction to Solid State Chemistry, Fall 2004