Metal Bonded Ruby Search Results

How To: Create a Christmas ornament in Illustrator

To create a Christmas ornament in Illustrator is very simple if you follow the steps below. Before starting the process one should ensure that all project files used in the tutorial is available. First by holding the shift key draw an oval, then go to gradient and create a new gradient which is at right side of the window. Now select red color and make it darker, then select 'Radiant' from the tool and switch the color positions. Select the ellipse tool once again and create a new shape on to...

News: Starve E Coli of Copper to Cure Aggressive UTIs

Urinary tract infections (UTIs) drive over eight million people to seek medical attention every year. Almost all — as many as 90% — of those infections are caused by Escherichia coli. Copper can kill bacteria, but E. coli has found a way to capture the copper, preventing its antibacterial action. Now, researchers have found that, in a cruel irony, the bacteria use the copper it grabs as a nutrient to feed its growth.

How To: Wind a bobbin and thread the needle on a machine

Tracie Cunniliers demonstrates how to wind a bobbin and thread the needle using an automatic needle threader in 'Elna 2800'.To wind a bobbin, place a spool of thread on the holder. Place a thread holder next to the spool of thread. Take the end of the thread and wind it around the clip situated on the other side of the machine. Now take a bobbin and pull the needle through the bobbin inside-out. Now place the bobbin on the holder and click into place. Hold the end of the thread and slowly pre...

How To: Replace a hard drive in a 15" macbook Pro

The video starts by informing about the basic safety precautions, tools needed and backing up data prior to hard drive replacement. There are a series of screws which need to be removed in the following order.1. Removing the battery from the back and then remove three screws thereby removing the RAM cover.2. Two more screws to be removed under the RAM cover.3. Two screws from inside front edge.4. Four screws from the bottom rear.5. Two screws each from the slim sides.6. Two screws near the hi...

News: Make a Spoon Disappear

If you're willing to shell out for a mind-blowing party trick, here's another great one to add to your repertoire. Unfortunately this isn't a dirt cheap junk drawer DIY—you'll need a $40-$60 gallium kit (which doesn't include the spoon mold). What is gallium, you may ask? An amazing, man-made metal which melts at the low temperature of 86 degrees Fahrenheit. Plunk your trick spoon into a cup of hot water, and amaze. According to the Department of Energy, it's safe to handle as long as you don...

How To: Hack UnrealIRCd Using Python Socket Programming

UnrealIRCd is an open-source IRC server that has been around since 1999 and is perhaps the most widely used one today. Version 3.2.8.1 was vulnerable to remote code execution due to a backdoor in the software. Today, we will be exploiting the vulnerability with Metasploit, examining the underlying code to understand it, and creating our own version of the exploit in Python.

News: CodinGame (Games for Programmers)

Hi there, nullbytes! Lately I've seen many people posting their codes for many purposes (I've saved most for later use and exploration), and it struck me that maybe some of you find CodinGame fun. Personally, I do, but I couldn't got too far in their games. Still, I find it pretty satisfying when my code finally does what I wanted it to.

How To: Break into Almost Any Gun Safe with Straws, Paper Clips, Coat Hangers, and Even Children!

At the recent DefCon conference in Las Vegas, researchers opened many of the top commercially available gun safes with simple tools like a straw or a paper clip, and in one case, just by shaking it a bit. The investigation began after the researchers, Toby Bluzmanis, Marc Tobias and Matt Fiddler, learned that certain Stack-On safes, issued to some law enforcement officials to secure their firearms at home, could be opened simply by jiggling the doorknob.

How To: Use high voltages using the Wimhurst machine

In this video, we learn how to use high voltages using the Wimhurst machine. First, you must have a spinning wheel, double ended brushes, collecting combs, leyden jars, adjustable electrodes, and small metal plates. Once you connect all these together, you will notice the brushes on either side are perpendicular to each other and the wheel spin in opposite directions. Spin the wheel and then listen to the sound it makes. The plate will then charge with different electrons and create positive ...

How To: Play Johnny Cash-style country rhythm guitar

Even if you're a metal head or a shredder, you can't deny how cool it is when a good ol' country picker gets up there and rips it up! Johnny Cash was one of the few modern Country singers who brought electrified country into the mainstream for his time. If you're looking to add a few country-fried licks to your arsenal and learn how to do some basic country guitar, check out this video lesson! You will learn how to alternate between the root and fifth of the chord to simulate the bass, as wel...

How To: Play basic Blues on the acoustic guitar

The blues is where it all began. Before you learn how to play rock or jazz or metal, you should start with the blues. Learning the basic 12 bar form can help you feel out measures and develop your sense of direction in music, and learning how to play the shuffled rhythm will help to increase your proficiency with learning other rhythm patterns. In this fantastic video you will get a basic over view of the Blues on the acoustic guitar and a quick variation on the standard blues shuffle.

How To: Fix Your iPhone 4 Antenna with Scotch Tape

The iPhone 4 is one of the most divisive pieces of consumer electronics ever released. Its defective antenna has ruffled the feathers of even the most diehard Apple enthusiasts. This video will show you how to fix the antennagate issue using only some Scotch tape, which when applied to the proper place, will keep the antenna from grounding itself on the metal piece below, which is what causes the phone to lose signal when you hold it.

How To: Add strength to a landscape patio wall

In this video tutorial, viewers learn how to add strength to a landscape patio wall. For reinforcement, users should insert metal pipes down through the wall. To do this, users will need a sledgehammer, 1/3" pipe and a large diameter pipe cutter. Determine the length of the pipe by adding 2 feet to the actual length of the wall. Cut the pipe to the length and insert the pipe down through a large diameter hole on the wall. Remove the surrounding blocks and use the sledgehammer to drive the pip...

How To: Build a DIY electromagnet for cheap

This video shows the viewer how to make an electromagnet using common items. This is done using a broken microwave, a spool, a cordless drill, a battery and a coat hanger. The microwave transformer is dismantled and the enamel insulated wire is removed. Using the cordless drill the wire is then coiled around the spool. The iron coat hanger should then be cut into small pieces and placed in the middle of the spool. It should be secured tightly. The battery was then connected to the wired coile...

How To: Open a can using a knife instead of a can opener

This video is how to open a metal can with the corner of a knife. First, you must find a knife that has a ninety-degree angle where the corner is a sharp point. A cleaver, like the one shown in the video, type of knife would be best. You use the corner to puncture the can and continue puncturing it as you rotate the can. Make sure to tilt the knife outwards after you puncture. Puncture successively and simultaneously rotate the can so that each puncture mark starts where the last one left off...

How To: Wax a snowboard in a quick and easy way

In this video tutorial, viewers learn how to wax a snowboard. The materials required for waxing are: wax (cold, warm, or all temp), an iron, scraper (plastic or metal) and a hard bristled brush (or rough side of a sponge). Begin by laying the board with the base facing up. Turn the iron on and melt the wax. Move the wax around to evenly distribute it on the base. Then use the iron to spread the wax in a thin layer. Allow the wax to cool for 30 minute and remove the layer with your scraper. Bu...

How To: Adjust the truss rod on your guitar

The truss rod is a big metal bar that goes through the whole neck on your guitar and is used to control the amount of arch that the neck of your instrument gets. You will want the neck to be essentially straight, with a tiny bit of curve. Lots of things can cause your wood to arc..weather, storage, age.. and the truss rod is used to fix this and keep the neck straight allowing you to play your piece properly. All guitars come with a truss rod and they are easy to adjust if need be. This tutor...

How To: Solder wires

Soldering properly is a skill every electronics and computer hobbyist needs. Proper soldering appears deceptively simple, but it requires practice. One has to do the steps below to solder the wires which is as follows, First Clean the area you wish to solder and scrape the wire down to the metal and then wiping it clean with alcohol or acetone. Then you want to use a rosin-core solder for electronic applications, which comes normally with coils. Tin the tip of the first Wrap one or two inches...

How To: Tune to a drop D tuning on an electric guitar

This video describes the process of tuning the E string on a guitar down to D. The presenter explains this is a great effect for heavy metal and hard rock and makes playing power chords much easier. The method is to listen to the open D string on the guitar and then tune the E string to the same pitch. Since this is the thicker string it will sound one octave lower than the open D string. After the tuning is complete the presenter demonstrates several power chords and how they are much easier...