How To: Understand camera meters and histograms
Get better exposures by understanding how your camera's light meter sees a scene, and how this relates to histograms.
Get better exposures by understanding how your camera's light meter sees a scene, and how this relates to histograms.
Watch this video to understand how odor and taste drives the mating behavior of much of the animal kingdom.
The animal kingdom is a vast landscape of bizarre behaviors. Watch this video to understand the mating practices of intense dominant female animals.
The ritual battles for dominance is a key factor in which animals get to have intercourse and which do not. Eventually someone wins and carries on their genes. Understand this example of survival of the fittest.
Feeling lost inside a library? The Dewey Decimal System is a logical and popular book classification system for libraries and schools helping you to easily locate any book or periodical you need. Fool these steps to better understand the Dewey Decimal System.
Has time travel always sparked your interest? Are you weirded out by wormholes? Flummoxed by your flux capacitor? Strap yourself in for this time-travel primer.
In this tutorial, we learn how to understand how women think about men. When a woman walks by you, if she's smiling the whole way you have to think about how she feels when you approach her. Women think the same exact way as men do, they're equally as nervous and scared. If the girl is laughing and giggling, this is not a blow off. Look for a girl that is animated and wants to talk to you. Stop thinking that women are different from you and they don't think like you, then you will be able to ...
In this video, we learn how to understand completing the square. First, you will write the quadratic expression out. Then, you will write the open bracket so you write it out in the correct format. Now, find the number in front of the 'x' term, which is the coefficient. Then, write this number on the other side of the equation in the parenthesis. From here, you will need to follow the proper rules of math to find out what the square is equal to. When you are finished, make sure you label the ...
In this tutorial, we learn how to understand the basics of reading sheet music. What you will first see are the basic clefs. One is for the right hand and one is for the left. In the middle is the middle c and on the far right is the c above the right hand. The notes continue in each direction but they follow an exact pattern. In the beginning, memorize only the middle "C", where it is on the piano. After this, you will learn the upper and lower "C". Continue to practice with reading the musi...
In this video, we learn how to understand and determine equivalent fractions. If you have an equation with an equivalent fraction, you will first multiply the first numerator by the second denominator. Then, you will divide this answer by the denominator of the first fraction. After you do this, it will give you the correct answer. You can also do the reverse multiplication for this to check your answer and make sure you are correct. You can get an answer no matter what the numbers in the equ...
In this tutorial, we learn how to understand sparring in boxing. A good technique is what you need when you are sparring. If you're a beginner, make sure someone with a little more experience is watching you and giving you tips. Sparring needs to be a controlled fight and can help you fight better when you are in a full on fight. When you are sparring, you will be in a controlled area and have experts around you, start out with the other person around you and take shots at the person to try t...
In this tutorial, we learn how to understand shooting surfaces in basketball. Make sure you have the ball located on the finger pads or shooting surfaces. On the finger pads, keep the ball engaged with them and not the palm of the hand. This is also the shooting surface, where you have better control of the basketball. You can elevate the basketball from your thumb by spreading out your fingers so there is a finger's length between the palm of the hand and the ball. Test this out with one of ...
In this tutorial, we learn how to understand fractional exponents. Starting with an example, let's say you have the square root of four as an equation. The answer to this is two. A fractional exponent is not much different than this problem. Let's say you have 4 to the 1/2 power. This would be equal to (2 squared) 1/2. Now, using the third exponent law, the term becomes 2 to the power of two x 1/2. This will leave you with the answer of two. Now you know how to get the correct answer and can ...
In this video, we learn how to use and understand depth of field in photography. If you look at a photo, the depth is how deep the picture looks. You can change the depth by changing the aperture to make the depth of field look shorter or longer. The lighting can also change the depth of field and what you can see in the background. A big aperture will give you a large depth of field, with a small amount of light. If you want a big depth of field in a landscape, then you will use a maximum ap...
In this tutorial, we learn how to understand rheumatoid arthritis. This concentrates by attacking the joint spaces and causing a reaction. This doesn't happen for an exact reason, but it usually occurs in older individuals between 40-60 years old. This also occurs in young children rarely. The symptoms are when the joints become inflamed and painful. This happens around the knees, ankles, neck, and more. This attacks both sides of the body and the same body parts at once. Fatigue, fevers, mor...
In this tutorial, we learn how to understand Sacroiliac joint pain. This pain occurs where the spine connects to the pelvic region. This can cause a lot of inflammation which can lead to arthritis or pain. This can also occur if you have an injury, which will cause an muscle group to become smaller. Other causes include where you have an inflammation caused by rheumatic diseases that cause inflammation. Symptoms include pain in the low part of your back around your pelvis. Treatments include ...
To understand how exponents work, you will need to think of simplification. There are ways to simplify equations, and using exponents is one of those ways. 3 x 3 x 3 can be simplified by raising the number 3 to the third power.
In this video, we learn how to understand the triangles on the lines while palm reading. The triangle on the lifeline shows that any obstacles the person goes through will be in their thirties. It will also say that they can get back onto their feet quite easily. Any set backs or accidents are minor and they won't have distress for too long. If the triangle is on the heart line, it will show that the person has a certain mount of security in friendships and/or relationships, that can help the...
In this video, we learn how to understand the basic golf swing. If your contact with the ball is good, your shot will be played out correctly. In a full shot, you would make your back swing, then shift your weight onto your left foot along with your belt buckle. Using your body in a swift swing is the key to having a good swing and making the ball fly where you want it to. Give yourself enough time to practice, because it takes your body a few tries to get used to this stance. When you are do...
In this tutorial, we learn how to understand artist tools for painting. The first tool is plastic, which can be use for great textures on the painting. Cheap brushes are great for painting in big spaces and fan brushes are great for painting wider widths. A badger hair brush will be best for painting tails on canvas and different types of papers. A synthetic brush is very easy to clean and perfect for oil or acrylic paint. A hair dryer is a tool that is great to speed up the drying time of pa...
This video tutorial is in the Fine Art category which will show you how to use & understand studio flash. Right in front is the flash ring. It controls the direction of the flash. The most important buttons are the up and down button that controls the power of the flash. Five is the lowest power and it goes up to ten. Starting with five it goes up by one stop increment. You don't need to use any of the other buttons. All you need to do is to turn on the flash with the ON / OFF button, point i...
If you're worried about having your private information taken away from you by hackers and other malicious people, this tutorial may help you. This tutorial will help show you how to easily use and understand the phishing filter in Internet Explorer 8. It only takes a couple of clicks to activate and can be the difference between making sure your private information is secure or out in the open for others to use. Good luck and enjoy!
In this Fine Art video tutorial you will learn how to understand your lens and its effect on depth of field. The lens in the video has some inscriptions which are interpreted like this. 50mm is the focal length of the lens. The aperture is from f1.4, which is the widest lens opening to f16, which is the smallest lens opening. The higher the number the lesser the lens opening. Aperture determines the amount light that comes through the lens. Aperture also decides the depth of field. With a wid...
This video illustrates how to do a "free fall" experiment to understand orbits. Here are the following steps:
The instructor in this video uses humor to teach people math, which is not a favorite subject for many. The video goes on to teach the students in the video different ways to cut the conic sections into different shapes. The teacher then focuses on parabolas and defines the formulas. The formula is y = x^2. The rest of the video dissects the equation breaking it down into much more meaningful statements so that the average human being who is not very good at math can understand the equation. ...
This video explains the properties of parallel lines and transversals in geometry. The instructor, Robert Ahdoot, uses an analogy in which he compares lines and transversals to the streets of Manhattan, New York. Continuing with this comparison, he goes over corresponding angles of two parallel lines cut by the same transversal, also explaining when they're equal. He then shows where interior and exterior angles may be found, and then goes over whether two angels are same-side or alternate, d...
This video helps us understand parallelograms and its properties. The video starts with the description of the basic properties of a parallelogram. The parallelogram is a four sided shape which has the sum of all four interior angles equal to 360 degrees. The opposite sides of a parallelogram are equal and parallel. Then the video talks about the angles in the parallelogram. The parallelogram has a lot of symmetry. This makes the opposite angles of a parallelogram equal. The same side angles ...
Learn and understand the basics of Trigonometry in this entertaining video. Taught by an experienced YayMath instructor, viewers gain knowledge in the study of trigonometry: the relationship of angles and the triangles they are in. Trigonometry is relevant in many forms of everyday living and careers including architecture. Watch as the experienced instructor gives easy-to-follow instructions and examples including solving "x for y" equations using the 'SOHCAHTOA' method, an abbreviation for ...
Eyepatchentertainmen teaches you how to use a Canon 7d and understand the recording audio issues. The 5D only shoots 30 frames per second, as opposed to the 7D, which records in a standard frame rate, which will help you sync the audio to the video. The microphone that comes with the Senheiser G2 wireless kit plugs directly into the Canon 7D and works well. There is no manual control over the audio yet. The 5D and the 7D are amongst the best audio recording DSLRs out there. To make sure you h...
In this video tutorial, viewers learn how to speak French. This video focuses on the phrase "il faut" and the French infinitive. This video is the third episode of a ten episode series. Viewers learn how to form sentences and the meaning of some French words. This video is very detailed and descriptive. It gives a great, easily understood explanation for viewers. This video will benefit those viewers who want to learn the French language or want to become more fluent in speaking French.
In this video from Socoolscienceshow, Crazy Chris explains to us how magicians make things disappear. For this he uses a plate, cup, and a napkin. You cover the cup and plate with a napkin. He removes the napkin with the cup and shows that he taped the cup to the bottom of the plate so they are both removed at the same time. To maintain the look of the cup in that napkin when it's removed he shows that he trace the cup onto some construction paper cut it out, and tape it to the napkin. Then h...
This energetic video shows what the Cambrian Explosion is and when it occurred in relation to a 24 hour clock that represents Earth's life. The Cambrian Explosion was a huge increase in multicellular life forms that occurred about 542 million years ago. The video then demonstrates how the Cambrian Explosion was only a small part of the history of life on Earth. It goes through the major developments of life on Earth and shows how it relates to a 24 hour period. This video is a tool in underst...
This video describes the properties of a parallelogram. It states that it is a quadrilateral, meaning that the four angles inside have to add up to 360 degrees. Both sides of the parallelogram are always going to be parallel. Also, both sides are congruent, as well as the opposite angles. It also has two diagonals that intersect at a midpoint. This video will teach you the main properties of a parallelogram and help you better understand its angles and the physical makeup of it.
This video is about understanding the basics of selling on eBay. Your feedback rating is very important. Buyers rate you on their purchase, the quality of the merchandise, how quickly it arrived, and the information you provided. Research prices on eBay. If the item is priced $2.99, and there are "0" bids, it's the starting price. If there are 8 bids, and the price is $12.99, the item was bid up to $12.99. Click on the item link below the picture, and it will bring up the bid history. You can...
In this segment of "That's What He Said," guys reveal their deepest secrets about the male perspective on dating and relationships. In a committed relationship, guys are still interested in keeping a slight air of mystery about their women. There are just a certain few things that they believe women should not do in front of men, such as going to the bathroom, doing makeup and giving each other some alone time. After watching this video, a viewer would gain some insight into the man's mind an...
Maybe you learn best by seeing things worked out in front of you and what you just saw in class today about Electronic action potential of neurons didn't quite sink in. Not to mention the test that you have coming up this week is going to be an in-depth analysis of your knowledge on this material. Let Khanacademy be your guide! For less than half the time it takes to sit through the Professors class, he explains the function of Neurons, how action potential works and sends you on your way to ...
One of the most fascinating figures in the 3 dimensional world is the cube. This video goes into details about the rotational symmetry of a cube. The video examines this property of cubes by rotating the figure on different axis and inspecting how this property of cubes change or react. This video is for anyone interested in 3 dimensional figures. After watching this, viewers should have a basic overview and understanding of this unique rotational symmetry property of a cube.
We all learn a simple description of photosynthesis in grade school but there are a lot more complicated process going on. Plants can utilize carbon at night and this description will explain a very advanced understanding of how CAM works.
In this episode of Science Theater Dr. Carlson helps you understand the concept behind Density and how it relates to Mass and volume and how to calculate the Density of a substance if its Mass and Volume are known. The Density of various metals is demonstrated using aluminum, tin, zinc, lead and copper of the same mass but different sizes. The easiest way to measure the density of a substance is also mentioned. Next, Dr. Carlson measures his own density using a scale and a bathtub.
Central limit theorum is easily one of the most fundamental and profound concepts in statistics and perhaps in mathematics as a whole. In probability theory, the central limit theorum (CLT) states conditions under which the mean of a suffiently large number of independent random large variables (each with finite means and variance) will be normally distributed, approximately. Huh? If you are having trouble understanding central limit theorum and need help trying to solve it, check out this tu...