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How To: Determine whether watermelons are ripe or not ripe

One of the hardest fruits to determine the freshness of is the watermelon. It's the biggest question in the produce department of grocery stores, so you're not the only one having problems. This video from YourProduceGuy gives you the tips to finding out what to do when picking out a fresh and perfectly ripe watermelon and the local store. There's a sweet spot for every fruit.

How To: Determine why your bike chain is skipping

If you bike chain is skipping, and you aren't sure why, you could have a worn-out cog issue. This is especially likely if you cogs are substantially older than your chains. This video will teach you how to assess your cogs for wear. which will help you determine whether you need new ones or need to take other steps to get your bike riding smoothly again.

How To: Determine your VO2 maximum

Backpacker magazine associate editors Jason Stevenson and Shannon Davis demonstrate how to estimate your VO2 Max in this April 2007 SkillsCast. Find out how a simple running test can determine your VO2 Max, and why raising your score can make you a better backpacker, increase your endurance and fitness level.

How To: Determine your skin tone

In this editon of Tip Tuesday from Pursebuzz we are shown how to determine your skin tone. This tip is a pretty simple way to determine if you're a warm or a cold tone, and if you are pink-based or yellow-based. That's the first question you're asked if you go to a counter and you're trying to figure out your foundation colors or your blush colors or shadows, or what will work for you. The first test is the fabric test. You don't even have to buy this fabric. You could just go to a fabric sto...

How To: Determine if lines are parallel or perpendicular

In this tutorial, we learn how to determine if lines are parallel or perpendicular. You will be given two straight line equations. First, remember that parallel lines have equal slope, identical to each other. Perpendicular lines have negative reciprocal slopes. For example, 2/3 and -3/2 would be a perpendicular line. If you think of parallel lines, then you can graph them to see what they look like when written down. Then, graph the other lines to see what they look like as well. Once you un...

How To: Understand and determine equivalent fractions

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...

How To: Determine the launch velocity of a metal ball

This experiment uses a ballistic pendulum to determine the launch velocity of a metal ball. This is compared to a measurement of the launch velocity found using projectile motion. You may wish to emphasize why energy is not conserved in the initial impact of the ball into the ballistic pendulum, but momentum is, and conversely why energy is conserved as the pendulum rises but momentum is not conserved.

How To: Determine Texas Hold'em hand rankings

So you've been invited to a poker game, but you don't know the difference between a straight and a flush. Well, this how to video is here to make sure you don't lose all your money, or your shirt. This Texas Hod'em lesson teaches you how to determine the ranking for various hands. It runs through all possible winning hands in Texas Hold'em and explains their rank. At the end of the video you will be tested on your newly acquired knowledge of Texas Hold'em hands. Are you holding the nuts or ar...

How To: Determine whether your phone has been tapped

Big Brother is closer to becoming a reality than ever before, especially in the UK. If you're concerned about whether you phone is being tapped, watch this video to learn about steps you can take to find out whether your phone has been bugged or not and make sure your communication remains private.

How To: Use Markovnikov's rule to determine the likelihood of an addition reaction

In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to use Markovnikov's rule to figure out which addition reaction is most likely in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Determine the air amount in packing peanuts w/ acetone

How much air is actually inside a packing peanut? There is a simple experiment to conduct to see what is leftover. To begin, pour 200 ml of acetone into a glass container and add approximately 1800 ml of packing peanuts. Stir with a wooden spoon to dissolve. The video's author starts with the 1800 ml and realizes that that isn't enough. He then keeps adding until he has added an entire large bucket to the original 200 ml of acetone. After all are dissolved, all that is left in the glass conta...

How To: Determine the age of a fossil using carbon-14

If you have a fossil, you can tell how old it is by the carbon 14 dating method. This is a formula which helps you to date a fossil by its carbon. If a fossil contains 60% of its original carbon, how old is the fossil? The half life of carbon 14 is 5600 years. That means this is how long it takes for half the nuclei to decay. After 5600 years, if we start with a gram, we end up with half a gram. This rather complex formula shows you how to solve this puzzle using accepted scientific methods.

How To: Use Microsoft Excel to determine statistical values

Follow this video to learn how to formulate calculations in Microsoft Excel. First type in a list of numbers in the cells. In order to calculate the median click on the cell where you want the answer to be shown. Then type equals, average, open bracket and insert the cell code where the first number is, colon, and then type in the cell where the last number in the list lies, and close brackets. In practice this is an example where the numbers are in a list from cell A1 to cell A11: =AVEARAGE(...

How To: Determine if someone's lying via Visual Accessing Cues

This video demonstrates how you can tell if someone is lying using visual accessing cues. This is a sample video of Kelley Moore teaching for a breakthrough collaborative application. She uses basic psychology terms to aid in understanding when someone lies. A sample visual cue for lying is to notice the eyes. If someone is lying, their eyes would twitch or unconsciously shift to the left side. If you follow the steps in this video, you'll be able to notice when someone is lying to you.

How To: Determine if an egg is hard boiled

This video tutorial is in the Food category where you will learn how to determine if an egg is hard boiled. This is really simple and very easy to learn and do. And it takes no time at all to find out a hard boiled egg from a raw egg. All that you got to do is take a hard boiled and a raw egg and spin them on a table top. You don't need to learn any tricks to spin eggs. Just spin them. The egg that spins faster is the one that's hard boiled and the one that spins slowly is raw.

How To: Determine whether two fractions are equivalent in basic mathematics

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to tell whether two fractions are equivalent to one another.

How To: Determine the right length for your trekking pole

Trekking poles make carrying heavy load across long distances on foot, like you do when you're on a backpacking trip, much easier. This video will help you make sure you're getting the most out of your trekking poles by teaching you how to make sure that your poles are the correct height for the situation that you are in. Get the most out of your modern hiking technology!

How To: Determine the active hand for a palm reading

Palmist and astrologer Peeter John explains the right, left, and active hand for palm-reading in this how-to video. The active hand is the dominant hand which is more important to be interpreted for palmistry. This video also suggests a method for determining which is the active hand. Watch this video palmistry tutorial from Peter John and learn how to distinguish the active hand for a palm reading.