INPUT ARTICLE: Article: Get into an arm-supported position with your hands positioned beneath your shoulders and fingers spread slightly, ready to push. Engage the muscles of the core and lower back by tensing the abdominals to keep your body in one rigid line. Poise on the toes or balls of your feet to maintain balance throughout the movement. In push up position, the body should be firmly locked into place, but not tense. It can help to keep the neck straight and the legs in line under the hips as if you were standing.

SUMMARY: Start in a standard push up position.

INPUT ARTICLE: Article: Your amp should have a label near the speaker output jack that indicates the output power (measured in Watts) and the minimum impedance (measured in Ohms). Be sure that your use the values for bridged mode, it is usually double the minimum impedance as stereo mode (meaning you need a much high impedance to run a bridged system) and up to four times the power output. Your sub-woofers should also be labeled with an impedance value (in Ohms) and a value indicating the maximum power input that they can handle (in Watts). The majority of amps on the home theater market are only stable at 4 ohms when bridged. Most car stereo amplifiers can do 2 ohms. You should have at least four different values written down. Amp Bridged Output Power Amp Bridged Minimum Impedance Speaker Power Rating Speaker Impedance To do this you should add together the speaker impedance number for all of your speakers. You want the impedance to be at least equal to the minimum impedance value of your amp on each channel, but not to exceed 16 Ohms unless your amp is specifically rated for impedance values above 16 Ohms. The formula for finding total impedance for speakers wired in series is Z1 + Z2 + Z3 . = Ztotal. Where Z is the impedance of a given speaker. For example, if you have three speakers with impedance values of 4 Ohms, 6 Ohms, and 8 Ohms your total impedance wired in series would be 18 Ohms (4+6+8=18). The formula for finding total impedance of speakers wired in parallel is a little trickier. It is (Z1 x Z2 x Z3) / (Z1 + Z2 + Z3) =Ztotal. So say you have two speakers with impedances of 6 Ohms and 8 Ohms. This time it would look like this: 1) Multiply the values. 6 x 8 = 48 Ohms 2) Add the values. 6 + 8 = 14 Ohms 3) Divide the top by the bottom to find your total impedance. 48/14 = 3.43 Ohms (rounded) You can also use an impedance calculator such as this one http://www.speakerimpedance.co.uk/. This will be based upon the total impedance and the power output of your amplifier. You can use variations of Ohm's Law to do the calculations yourself or you can refer to the online calculator above. You do not want to overpower and blow your speakers. The output power should be stamped near the output jack on your amplifier and measured in Watts. You speakers should also be labeled with a wattage. The output wattage should meet or exceed the sum of all of your speakers. For example if you have two subs that each pull 200 W, you would want an amp that produces a minimum of 400 W. Ideally you would have an amp that produces more than what is required, this is referred to as "head room" and helps to avoid clipping. Wiring powered devices can be dangerous. If you are working on a car stereo system you can simply disconnect the battery terminals.

SUMMARY: Locate the specification labels for your system. Write down these values. Calculate the total impedance of all of your speakers. Calculate the power each speaker will receive. Verify that your amp has enough power for your subs. Unplug your equipment.

INPUT ARTICLE: Article: Typically, hemorrhoids go away within of week of starting home treatment. If yours doesn't start improving or immediately comes back, then it's best to talk to your doctor about it. Additionally, you may need additional treatments if your hemorrhoids are causing extreme pain or excessive bleeding. Don't ignore these symptoms. Let your doctor know that you've been experiencing symptoms of a hemorrhoid, as well as how you've been caring for it. If your hemorrhoids won't go away or are significantly impacting your life, your doctor may recommend getting a medical procedure to help you heal. Most of these procedures are minimally invasive. The most common ways to treat severe hemorrhoids include: Ligation, which involves tying a rubber band around the base of the hemorrhoid to cut off the blood flow. Injection of a chemical solution designed to shrink the hemorrhoid without causing you pain. Cauterization to heat the hemorrhoid until it hardens and stops causing symptoms. Hemorrhoid stapling, which blocks blood flow to an internal hemorrhoid so it shrinks. Hemorrhoidectomy, which is the surgical removal of a severe hemorrhoid that's interfering with your daily function.

SUMMARY: See your doctor for extreme pain, excessive bleeding, or persistent hemorrhoids. Talk to your doctor about additional treatments for severe hemorrhoids.

INPUT ARTICLE: Article: If you're trying to repair a malfunctioning external hard drive or flash drive, plug it into one of your computer's USB ports. Skip this step if you're attempting to fix a built-in hard drive. You may need a USB 3 to USB-C adapter if your Mac doesn't have traditional USB ports. It's a menu item at the top of your Mac's screen. A drop-down menu will appear. If you don't see Go at the top of the screen, click the Finder app icon in your Mac's dock (or click the desktop) to force it to appear. You'll find this option near the bottom of the drop-down menu. Double-click the Disk Utility app icon, which resembles a grey hard drive with a stethoscope on it. In the upper-left corner of the window, click the hard drive that you want to fix. It's an image of a stethoscope at the top of the Disk Utility window. Doing so will prompt Disk Utility to begin scanning (and repairing) your selected hard drive's bad sectors. Once the Disk Utility finishes repairing your drive, you should see a pop-up explaining what was repaired. If you don't see any repairs listed, your hard drive doesn't have any bad sectors to repair. For each time that a repair (or series of repairs) is listed, run Disk Utility again to scan for further issues. Once Disk Utility no longer reports repairs upon completing the scan, your Mac's hard drive is fixed.

SUMMARY:
Connect the drive to your computer if necessary. Click Go. Click Utilities. Open Disk Utility. Select a hard drive. Click the First Aid tab. Click Run when prompted. Wait for the repairs to complete. Run Disk Utility again.