Reverse Osmosis Search Results

How To: Turn an Old Kit Lens into a DSLR Macro Lens in Five Minutes

There are tons of ways to make a macro lens for your smartphone, but if you need one for a DSLR, it's not quite as simple as using a magnifying glass or a drop of water. If you have an old kit lens, though, you can turn it into a macro lens in no time—all you have to do is remove the front element. For this hack, Juha Loukola over on PetaPixel used a Canon 38-76mm lens, but says that the process should be pretty much the same for other lenses.

How To: There's Metal Hiding in Your Pepto-Bismol and Here's How You Extract It

Got an upset stomach or a little heartburn? America's favorite pink pill will cure it right up. But did you know that there's actually metal hiding in those chewable Pepto-Bismol tablets? Yes, metal. Technically, it's a poor metal, but metal's metal, right? Well, we do tend to eat a lot of iron in our diets, because it carries oxygen throughout our bodies, so consuming metallic minerals isn't anything abnormal. But you'd never think that Pepto-Bismol is actually made up of metal.

How To: Do the "Double Charge Reverse" pen spinning trick

Interested in pen spinning? Want to pick up a few moves? Pen spinning is the skilled movement of a writing instrument or pen with one's hands. It is used as a source of self entertainment (often for students), but there is a great deal of pen spinning culture (competitions, websites, etc.). Watch this pen spinning tutorial video and learn how to perform the "Double Charge Reverse" move.

How To: Do the "Demon's Sonic Reverse" pen spinning trick

Interested in pen spinning? Want to pick up a few moves? Pen spinning is the skilled movement of a writing instrument or pen with one's hands. It is used as a source of self entertainment (often for students), but there is a great deal of pen spinning culture (competitions, websites, etc.). Watch this pen spinning tutorial video and learn how to perform the "Demon's Sonic Reverse" move.

How To: Do the "Sonic Reverse" pen spinning trick

Interested in pen spinning? Want to pick up a few moves? Pen spinning is the skilled movement of a writing instrument or pen with one's hands. It is used as a source of self entertainment (often for students), but there is a great deal of pen spinning culture (competitions, websites, etc.). Watch this pen spinning tutorial video and learn how to perform the "Sonic Reverse" move.

How To: Fit a breast collar and back cinch on your horse

First of all you have to check the breast collar which is attached and hanged to the saddle. You have to maintain safety by not ducking under the horse neck. It is better for you to go around and do your job. Keep your head away from the horse head while attaching a collar. Ask your handler to hold the horse for you. Now pick your breast collar up and reach around the horse. Don’t duck under the horse head, but bring the collar belt to your side and then attach it to the ring on the saddle. N...

How To: Lose belly fat at home with a sit-up routine

To do basic crunches the lady is lying on her back with her knees bent and feet on floor about a foot apart. Fingers are spread under her neck and head. She raises her chest and shoulders looking up and back down to the floor slowly, 14 times. Now, the left feet crosses over the right knee which is still down on the floor and shoulder to the opposite knee with a small range of motion 14 times. She reverses doing the same thing with opposite leg and opposite shoulder. Now, arms are extended un...

How To: Make an origami lotus flower from a napkin

With this how-to on the ancient Japanese art of paper folding, you'll learn how to make a strikingly beautiful water lily from a paper napkin. For complete, step-by-step instructions on assembling your own paper lotus flower, watch this origami how-to and, if you like, read along below.

How To: Use jumper cables to jump start a car

This video explains how to use jumper cables to jump start a car. First, determine that a dead battery is the reason your car is not starting. If the engine cranks when you turn the key, the problem is not the battery and jump-starting won't help. If the windshield wipers, lights and heater blower all work, the battery is probably fine and you may have a bad starter. A jump-start won't help if you have a bad starter. If you hear no sound at all when you turn the key or if the engine cranks ve...

How To: Hem pants so they fit

You will need marking pencils or chalk, scissors, seam ripper, pins and good quality matching thread. Mark desired length on each pant leg. Option 1: Stand on pants and place a pin where fabric hits the floor. Option 2: Fold pants up to desired length & pin. Take pants off; turn the leg inside out. Note original hem size after it is 1 1/4 to 1 1/2 inches. Mark pin position/finished length. Rip out original hem stitching using seam ripper or point of scissor. Find right loop to pull & it will ...

How To: Create glowing eyes in the darkness with Photoshop CS4

In this how to video, you will learn how create glowing eyes in the darkness using Photoshop. First, open your image in Photoshop. Next, duplicate the background layer. Go to hue and saturation and make the image really dark by turning down the lightness and saturation. Next, select a paintbrush for the eraser and start erasing around the eyes. Once this is done, make a selection around the pupils. Create a new layer and paint the selection red. Next, lower the flow of the paint brush and cho...

How To: Use hand signals on a bicycle

Watch this video tutorial to learn how to use hand signals on a bicycle. Bicycles don't come with turn signals and brake lights. Fortunately, there's already a universal language for indicating turns and stops on a bike.

How To: Find & Exploit SUID Binaries with SUID3NUM

File permissions can get tricky on Linux and can be a valuable avenue of attack during privilege escalation if things aren't configured correctly. SUID binaries can often be an easy path to root, but sifting through all of the defaults can be a massive waste of time. Luckily, there's a simple script that can sort things out for us.

News: Monthly Injection Has Potential to Replace Daily Handfuls of HIV Drugs

People infected with HIV take many different types of pills every day to decrease the amount of virus in their body, live a longer and healthier life, and to help prevent them from infecting others. That could all be in the past as new clinical trials testing the safety and effectiveness of a new type of treatment — injections given every four or eight weeks — look to be equally effective at keeping the virus at bay.

How To: Bypass File Upload Restrictions Using Burp Suite

When attempting to gain access to a server, there may come a point when you need to get around file upload restrictions to upload something. If we can find a way to get around the restrictions, then we can upload anything we want to the server, effectively compromising it. That is what we'll be doing here today, so let's get started!

How To: Make a DIY Battery-Powered USB Charger

With portable devices being a necessity in modern everyday life, they may be subject to overuse, improper charging, or normal wear and tear. For those people who carry around their smartphone or iPod with them all of the time, how many times have you been out and about just to have your portable device die on you?