Contour Lines Search Results

How To: Find a slope of a line parallel/perpendicular to it

This video tells you how to find a slope of a parallel / perpendicular to it. In the equation y = mx + c, m is the slope. To calculate the slope of a line that is parallel to another line, you have to consider the rule m1 = m2 which means slope of the first line m1 is equal to the second line m2, if both the lines are parallel. Take the equation y = 2/3x - 7.2/3 is the slope. According to the rule m1 = 2/3 and so m2 = 2/3.Now to calculate the slope of perpendicular line you have another rule ...

How To: Use the midpoint formula to find midpoint of a line

In this video the tutor shows how to find the midpoint of a line. He goes on and gives a formula to find out the mid point of a line. The x coordinate of the mid point of a line is the average of the x-coordinates of the end points of that line. Similarly the y coordinate of the mid point of a line is the average of the y-coordinates of the end points of that line. He notes down the formula and explains it by taking an example. This video shows how to compute the mid point of a line given its...

How To: Write a slope-intercept equation perpendicular to line

In this tutorial the instructor shows how to write a Slope-intercept equation that is perpendicular to a line and passes through a point. He shows how to do this by solving an example with sample values. He says that the slope of a line perpendicular to the original line is the negative inverse of the slope of original line. Now he writes down the slope value in the general equation y = mx + c, and by substituting the sample value in the equation he obtains the value of the Y-intercept c, thu...

How To: Draw a perpendicular line from a point on a line

For people who are learning how to do basic geometry, this video will show you how to draw a perpendicular line from a point on a line using only a compass and pencil. You should first take your compass and place it on the center of the point on the line, drawing an even semicircle around the point. Then, finding the points where the semicircle intersects your original line, place the center of your compass on this point and then draw some arcs over where your point is. Repeat this on both si...

How To: Draw a dotted/solid line when graphing an inequality

In this video the tutor shows when to use a dotted line and when to use a solid line while graphing lines in coordinate geometry. He says that we should use a dotted line to plot an inequality which contains the symbols less than or greater than. He also says that we should use a straight line when plotting an inequality which contains the signs less than or equal to and greater than or equal to. He goes on and demonstrates this idea with some examples. This video shows how to use different l...

How To: Connect monofilament fishing line to a braid

This how-to video provides step-by-step instruction from Curtis Owens of Performance Tackle for attaching monofilament fishing line to a braid. While some fisherman only stick to one kind of fishing line, some might like to mix things up. The only problem is in learning to tie different types of line together. Watch this video fishing tutorial and learn how to connect monofilament and braided line together.

How To: Start reading sheet music for the piano

In this tutorial, we learn how to start reading sheet music for the piano. To be able to read the notes, you need to visualize what you are doing on the piano. A good starting point is the middle C on the keyboard. For a piano, you have horizontal lines in two sets on the sheet of paper. These lines are called "staffs" and the vertical lines are the "bar lines". The sections are called "measures". The top of those staffs is all the notes above the middle c. The bottom is all the notes below m...

How To: Tie a snell knot to a fishing hook

This is a video tutorial in the Outdoor Recreation category where you are going to learn how to tie a snell knot to a fishing hook. This knot is different from the usual ones and is one of the strongest fishing knots for tying a fishing hook to fishing line. It is also the easiest to tie. Take a fishing line about a meter long and a number 6 tuna circle hook. Pass the line through the eye starting from the front and coming out at the back. Hold the end of the line and the hook together, wrap ...

How To: Write the letter J in calligraphy copperplate

In this video, we learn how to write the letter J in calligraphy copperplate. For the uppercase letter, start by grabbing your calligraphy pen and drag it down so you have a thick black line with a thin line at the top. End the letter with a loop around it, then bring the top line to the left and loop it around, making a semi-thick line with it. To make the lower case letter, make a thin line going diagonally to the right, then dip the pen in ink and bring the pen down in a thick line down. C...

How To: Write the letter T in calligraphy copperplate

In this video, we learn how to write the letter T in calligraphy copperplate. Start by drawing a thick line that follows out a loop that curves to the left hand side. After this, create a loop at the top of the line, on the left hand side. Draw this out and cross the line over the top to make the T shape, ending with a slight curve at the end. To make the lower cased letter, draw a thin line, then draw a thick line over it, then cross a thin line across the top middle of the letter. Now you w...

How To: Write the letter Q in calligraphy copperplate

In this Fine Art video tutorial you will learn how to write the letter Q in calligraphy copperplate. Hamid Reza Ebrahimi shows you how to this using a Brause & Co No 86 nib, Persian traditional black calligraphy ink, Brause marbled penholder and Persian leather pasteboard and Steinbach pasteboard. To write the capital "Q", dip the nib in to the ink, then starting at the 2nd horizontal line, write upwards touching the top line. Then continue writing downwards till you touch the 4th line and no...

How To: Determine whether a pair of lines are parallel

See how to determine whether a set of lines are parallel given their equations with this free video math lesson. 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 (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tut...

How To: Calculate the slope of a line in algebra

Looking for a guide on how to figure out the slope of a line in basic algebra? 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 (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to calcul...

How To: Paint shadow lines on a model car

If you want to paint shadow lines on a model care you should first realize that you can pair this technique up with any other technique you want to for different effects. Shadow lines occur when the out lines get thick and it provides a contrast to make something pop out. Shadow lines will focus on the light source. You want your shadow to be realistic so you want to think about where you light source will be. To paint on shadows lines, focus on where the light source is coming from and darke...

How To: Draw female body proportions in the manga style

In this tutorial, we learn how to draw female body proportions in the manga style. First, you will need to mark your paper evenly with lines to see where you want the head to be at. After this, draw down the rest of the body, looking at the lines as you continue to draw. Use these lines as measurement tools to make the body look proportionate. For example, the head should start at one and the fingers should end at the fifth line. The waist should come at line 3 or 4, then you can finish off t...

How To: Tie a bent solomon bar on a line

The Solomon Bar is one of the more versatile ties in the paracording genre of knot tying. Although most prefer the straight line, in this video you will learn how to tie a bent line in your knot. You will get a full tutorial of the entire process with each step shown up close with extreme detail.

How To: Tight line your eyes with pencil

In this makeup tutorial, Petrilude gives you the lowdown on tight-lining your eyes with pencil. Petrilude does this so he can get the look of a darker lash line, and give himself the appearance of denser lashes. It still doesn't take away lid space, so there's plenty of room still to play with colors on the eyelids. Try it out yourself!

How To: Make a halter dress out of old t-shirts

Of two old t shirts, one is taken and marked from the collar to under the armpit on all four sides of the t shirt. The marked lines are cut along. The shirt is tried on and pinched and pinned under armpit until the right fit and marked with chalk. Both sides of the shirt is cut off and along the chalk line is pinned. A straight edge and chalk is used to make a line from the pin to the bottom edge of the shirt on both sides.Both side of chalk lines are pinned down. The bottom is made even with...

How To: Create dotted lines in Photoshop

In this tutorial Photoshopuniverse describes how to create dotted lines in Adobe Photoshop using the brush palette. First create a new blank document in Adobe Photoshop. To open brushes palette, go to menu Window - Brushes. By adjusting spacing and hardness of brush under Brush Tip Shapes menu you can draw desirable dotted lines. To get uniform circled dots uncheck Shape Dynamics box. By holding the shift key click and drag to get a straight dotted line. To create bullet holes or perforated h...

How To: Read life lines on palms

Check out this video palmistry tutorial to learn how to read the life lines on your or someone else's palms. There are lots of interesting and good tips that you can do right now while sitting at your computer. No need to go to a psychic, read the life line on your palm by following along with this how-to video!

How To: Make a clear silicone rubber mold

This is an excellent video that covers creating a clear silicone rubber mold to deal with a complex parting line or irregular shape. When a project requires a complex parting line, it is often easier to pour the entire mold in one process with clear rubber, then cut your parting line. This process also saves at least a day in creating the mold. This process can be used in automotive, mechanical, fine art and film special effects uses.

How To: Add a mono leader to a braid fishing line

This great how-to shows clearly how to tie a length of braided line to a fluorocarbon leader. In the video, the demonstrator uses large rope so that the technique can be clearly seen. This trick has been gaining popularity in the freshwater fishing community lately in part because it helps to reduce twist and snarl, but absorbing some of the pull. Follow this super video yourself and see if the trick works for you. When you're out in your boat and you feel the tug of that big mouth bass, you'...

How To: Tie braided line to leader

A recent trend in freshwater fishing is adding a fluorocarbon leader to your braided fishing line. The benefits of this are mainly allowing for some more absorbtion of pull, resulting in less twist and potential tangling. This how-to will show you how to tie this knot yourself, so when you're in the middle of that beautiful pond, and you feel the bite, you'll be able to successfully land that big one with less stress on you or your gear.

How To: Make a braid to fluorocarbon knot connection

There's a popular new trick in the fishing community and that's tying a braided line to a fluorocarbon leader line. To do this, you'll need to know the proper knot, and this video will show you how to do it. With this method you will reduce some of the problems of twisting and tangling with using braid right up to your lure. Check it out. The braid helps absorb some of the pull on the line, so see if you can feel it when you go to land the big one!

How To: Storyboard, make a shot list, line your script, and schedule a film production

Measure twice cut once applies to filmmaking as well as construction or any other complex process really, and that's why preproduction is they key to actually finishing your film on time and budget. This video will help you with several preproduction tasks, including storyboarding, making a shot list, lining / timing your script, and scheduling the actual production of the film.

How To: Apply stripes and lines to RV cars

In this video, we learn how to apply stripes and add lines to RV cars. You can do curved lines or straight lines, depending on the look you want. For straight lines, you will take tape and mark from the hood to where you want the tape to end. Use different sizes to create the look you want to achieve. To get the lines straight, place the tape on a straight surface as a guide with the clear top that goes over the vehicle. Once you do this, you can paint around this to form opposite colors. The...

How To: Interpret the heart and head line on your palm

In this video, Peter John teaches us how to palm read the heart and head line on the palm. When you see the heart line come across the mounds of Jupiter, you will be able to tell if someone is going to be wealthy. If the heart line is broken up, this shows the person has extra emotions. The heart line going towards the mounds of Jupiter is someone who is looking for a perfect mate to be with. When the heart line crosses and goes between the first and second person, it means that this person i...

How To: Tie a spinner bait on a fishing line

Spinner bait are good for attracting and catching bass when fishing. In order to have the lure and the bait working correctly when using this type of bait, you will have to attach the bait directly to the lure. This can be done using the improved fisherman knot. After threading the line through the bait, you should leave about 6-8 inches of line to tie the knot. Begin by making about 5 twists around the line and then thread the line through the hole created below the twists. After threading t...