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description= Physical science is the study of the physical world around you. Learn about physical science in the physical science channel.;
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physical science howstuffworks mobile menu howstuffworks science tech home garden auto culture more more health money animals lifestyle entertainment quizzes mobile newsletter 1 submit search search close search science tech home garden auto culture health money animals lifestyle entertainment quizzes submit search sign up for our newsletter mobile newsletter banner close howstuffworks newsletter mobile newsletter chat close mobile newsletter chat dots mobile newsletter chat dots mobile newsletter chat dots mobile newsletter chat avatar mobile newsletter chat subscribe advertisement howstuffworks science physical science physical science physical science is the study of the physical world around you learn about everything from electricity to magnetism in this section topics to explore acoustics chemistry electricity forensic science history of physical science magnetism math concepts matter nuclear science optics more brown noise vs white noise which is best for quality sleep can a sound wave kill you can two cans and a string really be used to talk over a distance 7 types of alcohol for drinking cleaning and more understanding the empirical formula in chemistry the most expensive metal in the world isn t gold or platinum how electricity works how faraday cages work how gasoline works what does mummification have to do with gene hackman what do bugs have to do with forensic science 5 things you didn t know about autopsies how alchemy paved the way for chemistry how did nikola tesla change the way we use energy time may not exist say some physicists and philosophers why does ice stick to your fingers what if i forgot to remove a piercing before an mri a kid friendly introduction to magnets and magnetism what s the hardest math problem in the world try these 9 8 types of data that inform insights and relationships congruent angles definition symbol and key theorems tonnes vs tons metric vs imperial measurements strike again the most expensive liquid is 26 000x the price of human blood 5 hugely fun facts about mass not weight the demon core a tale of atomic ambition and tragic fate half life formula components and applications could an x17 particle hint at a fifth force in the universe why are school buses yellow howstuffworks how to draw an impossible shape what are the colors in the visible spectrum how nuclear medicine works find out more what is white noise find out more can you really shatter a glass with a high note find out more metallurgy the study of metals and their properties find out more learn more what s the hardest math problem in the world try these 9 mathematics is filled with complex challenges but the hardest math problem in the world isn t just a difficult question on a school test it s one that defies centuries of logic calculation and creativity by grant virellan tonnes vs tons metric vs imperial measurements strike again if you ve ever priced out cargo or read about a ship carrying coal grain or bricks you ve seen tonnes vs tons these two words look similar yet refer to different systems and units in international trade and technical writing that small spelling shift changes real world numbers by grant virellan 8 types of data that inform insights and relationships different problems require different kinds of information and understanding the types of data is the first step to choosing the right analysis techniques by grant virellan advertisement the most expensive liquid is 26 000x the price of human blood from lifesaving medical components to everyday essentials the most expensive liquid on earth isn t always what you d expect these liquids are priced by rarity production difficulty and real world value and some cost far more per liter than gold by grant virellan 7 types of alcohol for drinking cleaning and more from cocktails to cooking alcohol is everywhere but not all alcohol is created equal the types of alcohol range from drinkable spirits to industrial solvents each with different uses chemical properties and risks by grant virellan what does mummification have to do with gene hackman ever wondered why some dead bodies last for thousands of years while others break down into dust that s where the science of mummification comes in whether it s through ancient rituals boggy swamps or some truly extreme self imposed methods mummified human remains give us an incredible look into history biology and even chemistry by nicole antonio rainbow colors always appear in the same order why are there so many songs about rainbows sings kermit the frog in a song about rainbows called rainbow connection from 1979 s the muppet movie and it s not just songs that feature rainbows children s memorabilia from my little pony to lisa frank to anything with unicorns and sweet treats from lucky charms to sherbert are all filled with these dazzling rainbow colors by ada tseng advertisement what is the most abundant element on earth not carbon ever wondered what the most abundant element on earth is or how the elements that make up our planet compare to those floating out in the vast universe by mack hayden congruent angles definition symbol and key theorems two congruent angles are simply pairs of angles with equal measures you can find congruent angles examples in hundreds of everyday objects by mitch ryan adjacent angles types and examples adjacent angles are one of the earliest and most important concepts to learn in basic geometry as they have applications in further subjects like trigonometry physics and engineering effective students of geometry should be able to identify adjacent angles on sight and calculate them to a great degree of accuracy without a protractor by talon homer what is the associative property of mathematics when pursuing an education in mathematics and algebra one of the earliest and most important concepts to understand is the associative property also known as the associative law by talon homer advertisement understanding the empirical formula in chemistry in chemistry there are a variety of methods that scientists use to identify a chemical compound including a molecular formula molar mass and molecular diagram the simplest formula of these is known as the empirical formula by talon homer what is a linear pair of angles in geometry in the subjects of geometry and trigonometry a linear pair of angles is any two adjacent angles formed together to add up to 180â or ï pi radians by talon homer the most expensive metal in the world isn t gold or platinum precious metals are not just shiny and attractive these elements are also incredibly valuable often used in a wide range of industries from jewelry to high tech applications by mack hayden how to find the area of a triangle with its three sides and three angles the triangle is one of the most basic shapes in geometry this means calculating the area of a triangle is a fundamental skill in geometry with multiple formulas available depending on the type of triangle and the given data by marie look advertisement finding factors of 36 factor trees and prime factorization in your study of math you will likely come across the concept of factors at a certain point while this can be daunting if you ve never encountered it before it won t take long before you re able to determine all the factors of a particular number by zach taras integers integer properties and the role of zero integers are natural numbers or whole numbers that stem from the latin word meaning intact in other words any two integers will be rational numbers a rational number is a value without fractional part or decimal remainders by mitch ryan rectangular prism formulas types and real world examples a rectangular prism is a three dimensional cuboid figure in the same way that a triangular prism brings three connected lines to life in the real world a rectangular prism takes the length and width of two dimensional rectangles to the next level by adding height into the equation by mitch ryan 30 60 90 triangle 4 facts to remember for your next test anyone who s ever faced mind numbing trigonometry problems and practice questions will be familiar with the pythagorean theorem and its square root principles in the 30 60 90 triangle this special triangle has several short cut rules to help new mathematicians find interior angles and linear lengths quickly by mitch ryan advertisement using synthetic division to save time in calculus and algebra in algebra and calculus a polynomial function is used to chart out graphs and waves with much more complexity than a simple linear factor polynomial division is sometimes required to factor them and cut them up into chunks that we humans can better understand by talon homer breaking down the arc length formula arcs are an important aspect of geometry physics trigonometry and design work however curved lines are much more difficult to measure than straight lines which is why it s important to familiarize yourself with the arc length formula by talon homer interquartile range how to calculate and visualize iqr the interquartile range iqr is a statistical measure of the middle values of a sample data set that is separated into four equal parts this middle value grouping can provide a median range between the upper half and lower half of the data you ve collected allowing you to ignore extreme values by mitch ryan how to use the mnemonic sohcahtoa in trigonometry the mnemonic device sohcahtoa helps budding mathematicians remember the trigonometric functions sine sin cosine cos and tangent tan which they need to solve for triangles missing sides and angles by marie look advertisement 8 exponent rules you need to know for your next math test when you re dealing with exponents numbers can get very big or very small very quickly therefore it s helpful to have some short cuts by zach taras how absolute value works in equations and graphs absolute value is a mathematical concept often used in conjunction with a number line or graph to represent the relative value from zero modulus to illustrate this idea in a different way the absolute value of a number can be closely related to distance in the physical world by mitch ryan 1 2 3 13 next page advertisement advertisement advertisement advertisement
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