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1) How to drastically increase the life of your shaving razor
Before or after you shave (I prefer before so that the blades are dry), place your jeans on a hard flat surface; then run the razor up the pant legs about 10-15 times quickly; then repeat running it down the pant legs 10-15 times quickly. No need to press that hard, but a little pressure is necessary. necessary. In both instances, you want to point the top of the razor in the direction you are rubbing the shaver on the pants. In other words, dont shave the pants; point the razor the other way, so that the blades glide over the surface of the jeans and dont try to cut them.
The threads on the jeans then will very effectively both fix any tiny bends in the blades that inevitably happen and will also sharpen the blades on your shaver cartidge. For an already dull blade, you can sharpen it up pretty effectively by doing 50-100 swipes both ways to get it back up to like new condition, but only 10-15 times swiped both ways should be necessary to maintain sharpness.
2) How to make your teeth whiter
Baking soda makes a good teeth whitener. Specifically, it works by breaking down stains in your teeth caused by such things as dark sodas, wine, smoking, coffee, etc. Baking soda, also known as sodium bicarbonate, when dissolved in water gives off free radicals which penetrate the surface of your enamel, combining with the stains in your teeth, and breaking carbon double bonds, thus helping to remove the stains. So in effect, it whitens by getting rid of the stains, rather than many commercial whiteners which more or less just try to bleach your teeth white.
In order to brush your teeth with baking soda:
* Just mix some baking soda in with a small amount of
water to create a nice thick paste and brush it on to
your teeth.
* Now let it sit for four or five minutes, then brush
again and rinse.
**Warning: Dont brush regularly with pure baking soda as eventually it will wear down the enamel of your teeth.**
3) How to Test a Car Alternator
With the engine on:
Step 1: Open your hood and so you have clear access to the car battery. Locate your alternator and check to be sure the alternator belt isnt loose.
Step 2: Turn your multi-meter to the 20 V setting.
Step 3: Start the engine. At this point, check to make sure the alternator pulley / belt is spinning properly without slipping.
Step 4: There are two ways to test the voltage coming from the alternator. If you have easy access to the alternator without getting your body parts / clothing / etc tangled in the spinning pulleys, then place the positive multi-meter probe (red) and touch it to the red terminal connector coming out of the alternator. Now take the negative (black) multi-meter probe and touch it to some metal part of your car frame (like a bolt head nearby or even the negative terminal on the car battery). Dont ground to the alternator itself. That would be potentially bad. You should now be getting a reading on your multi-meter display. If you dont have good access to your alternator, then you can simple test the alternator by touching the positive multi-meter probe to the positive terminal on your battery and likewise the negative probe to the negative terminal on your battery.
If the alternator is working well, your multi-meter should read somewhere in the vicinity of 14 volts (typically 13.8-14.2). If it is reading excessively higher than 14 volts (greater than 15 volts) it is possible that the voltage regulator on your alternator is faulty or going bad.
4) How to Survive Being Trapped in Quick Sand
* If you are wearing something heavy attached to yourself like a backpack, unstrap it immediately if you feel it pushing you down.
* Assuming you cant reach any part of dry land to help aid you in pulling yourself out, all you need to do to get out then is to slowly lean back putting more of your upper body in the quicksand, which may seem scary, but dont worry, youll float significantly better in quicksand than water, so you wont sink as long as long as you dont make sudden movements, which can result in significant suctioning effects, as well as simply seperating some of the water and muck around you. This can potentially create water pockets around you which can decrease your boyancy.
* As you lean back, gently try to bring your legs upwards. Be patient and do everything as if you are doing it in slow motion. Youve got all the time in the world here unless you act like you dont and move quickly; then your time on this earth might be ending sooner rather than later.
* Once you are on your back with your legs and mid-section floating, ever so gently use your hands to very slowly paddle your way towards the edge using very short slow strokes. Again, everything should be done as if it is in slow-motion. Dont submerse your hands all the way here. Also, try to keep part of your arms above the muck so you arent paddling with your entire arm. Paddling with your whole arm at too fast a speed will tend to make the sediment and water separate a bit around your body, as described before, which will decrease your buoyancy, which is bad. As long as you work in slow motion with small strokes, you should be fine either way, but good to be extra cautious.
*Depending on how far in you got yourself into the quicksand, it may take several hours to paddle yourself out to where you can reach solid land.
5) How to Remove Stripped Screws
1. Have a Dremel or equivalent tool? Use the Dremel to cut a notch in the screw head. Now take a flat-head screw driver and try and unscrew it using the notch you created.
2. Got a sufficiently wide rubber-band handy? Place it on top of the screw head then try to unscrew the screw slowly pushing really hard. Sometimes the rubber will give you the extra grip needed to get that screw out.
3. Use JB Weld or equivalently super strong welding adhesive to attach a nut to the screw head. Pick a nut that is about the same size as the screw head or at the least such that the diameter of the hole in the middle of the nut is smaller than the diameter of the hole in the screw. Now place the nut centered on top of the screw. Fill the hole with JB weld, being careful to not let it run everywhere. If the nut is flush on the screw, this shouldnt be a problem. If it cant be flush, use some sort of quick drying temporary gasket or the like to seal around the edges so that the JB weld doesnt get everywhere, but rather just stays in the hole. Now let it dry the recommended time. Once it has hardened up, use a socket wrench on the attached nut to remove the screw.
6) How to Tell If Youre a Supertaster
Whats a supertaster you ask? More or less, its just someone with a heck of a lot more taste-buds than the average person. All these extra taste-buds tend to make supertasters hyper sensitive to tastes, due to the increased intensity of any given taste they are detecting. Researchers estimate the supertasters experience flavors about three times stronger than the average taster.
Step 1: Poke a hole in the paper approximately the size of a standard paper hole punch hole (should be 7mm or .27 inches in diameter; most hole punches range between 6mm and 8mm).
Step 2: Now rub some of the food coloring onto your tongue with a cotton swab or your finger. You will notice under the magnifying glass that the food coloring will tend to show up on your tongue, but the papillae will stay pink-ish, looking like little pink bumps on your tongue.
Step 3: Place the hole on the paper over the part of your tongue that has the food coloring and press gently, so as not to move the paper while you are counting.
Step 4: Use the magnifying glass and a mirror to count how many papillae you see on your tongue through the hole in the paper. The papillae should appear like tiny pink dots surrounded by blue food coloring.
Thats it. If you counted close to 35-ish or more, you are a supertaster. If you counted between 15 or more up to around 35-ish, you are a medium taster. If you counted less than 15, you are a non-taster. Obviously there are ranges within each group, but thats generally how the three groups are classified. But beyond labels like supertaster, the more papillae you counted, the strong you taste things.
7) How to Easily Sharpen Scissors
The two easiest methods involve using sand paper or aluminum foil:
* With the sandpaper: use a relatively fine 150 or 200 grit sandpaper, cut with the rough side down.
* With the aluminum foil: take a nice sized sheet of aluminum foil and fold it a few times to get it nice and thick. Now cut thin strips of the aluminum foil with the scissors. Easy!
8) How to Survive Being Buried Alive in a Coffin
* First, DONT PANIC! Panicking will cause you to use up all your oxygen quite quickly and you likely dont have a lot of time to start with. Typically you could survive for one or two hours before using up your oxygen, as long as you dont panic. If your relatives were cheap, they buried you in a nice flimsy coffin. This is nearly the best case scenario. If they went high end on you, youre likely screwed. But hey, youre likely screwed anyways, but this will at least give you something to do while you slowly asphyxiate that at least has a slim chance at survival, so why not try it? Again, DONT PANIC!
Given the weight of the 6 feet or so of earth above you, your coffin might have already caved in one place or another. This is a good thing. If this has happened, you are literally almost home free (unless you are really short, then you have a bit more work to do). Odds are, considering you are still alive in your coffin with limited air supply, you werent buried that long ago. So the earth should be quite loose.
* Now, take off your shirt most of the way by pulling it up over your head so it comes off inside out, but doesnt come all the way off (think hockey fight); so that your shirt is basically now just inside out over your head.
* Now tie off the shirt at the top so it is sealed. At this point, youve basically made a bag out of your shirt that your head is now in. This is to help protect you from breathing in dirt.
* If your coffin hasnt already been breached by the weight of the earth above, use your legs to kick an opening somewhere in the coffin. Generally, the best place will be around the middle of the coffin which is usually the weakest point in terms of being able to hold the weight of the earth above. If this is a cheap coffin, with the help of the weight of the earth above, breaching the coffin will be easier than you think. If its an expensive coffin well good luck. In either case, best to keep your head and torso close to the opening to make sure you dont accidentally get stuck in the coffin where you cant move around because of all the dirt.
* Once you have successfully breached the coffin, use your legs and hands to push the earth coming in towards the edges of the coffin. Fill the coffin as much as possible with dirt, packing it in, without losing the ability to be able to get your head and torso out of the hole, head first.
* Once youve packed in as much dirt as you can, simply get your head near the breach and use all your strength to stand up with your arms straight up; you may need to make the breach bigger as you do so, but this shouldnt be too hard with a cheap coffin. As you are doing this, try to get one leg up out of the coffin so you can further push yourself up by standing on the outside parameter edge of the coffin lid.
* If you are buried around 6 feet deep and are anywhere from 5 feet tall or above, you should be able to not only have your arms break the surface at this point, but also have your head break the surface due to the fact that you pushed a foot or two of earth into your coffin. Now getting yourself completely out may take a little time without help, but considering the earth should be fairly lose, should be one of the easier things you just had to do.
Once your head has broken the surface and you can freely breathe, feel free to let yourself panic a bit if you need to and scream your head off, perhaps cackling madly; I mean, you are about 95% there at managing to escape being buried alive. I think a good healthy manic mad cackle is in order.
9) How to Make a Ridiculously Cheap Analog Pressure Sensor
Well here is an easy smeasy way to make an incredibly cheap analog pressure sensor. This pressure sensor wont be terribly accurate in terms of measuring precise weight or things of this nature, though it can be calibrated somewhat.
Step 1: Cut the foam to the size you like. You can cut it quite small and still get a good range of resistance levels, even as small as 1/4 inch thick and half an inch square should give you a range as big as 2.6K Ohms down to 400 Ohms when squished completely.
Step 2: Poke two wires into the foam. Make sure the wires arent touching and there is a bit of a gap between the two so that when squished they wont touch. To make sure the wires dont come out while in use, poke the wire all the way through and bend them at the ends.
Step 3: (optional):At this point your new analog pressure sensor is all ready to use. However, I like to put a nice covering on it to protect it from wear and tear and a little electrical insulation might be needed depending on what you are going to use this for.
My preferred method of covering the sensor is to use Plasti Dip or equivalent liquid plastic coating. If using Plasti Dip, dip once slowly and hang the sensor to dry. Wait 20 minutes and do this again. That should give a nice thick coat on the sensor. The Plasti Dip will stiffen the sensor quite a bit, so dont put too much on if you want it to stay extra squishy. In this case, one coat is probably enough. Play with it to get it to your liking for your particular usage.
10) How to Hack an Alarm Clock
Step 1: Locate the screw holes that hold your alarm clock together. On my old alarm clock, which incidentally Ive now had for around 15 years, the screw holes are on the bottom. Remove the screws holding the case together.
Step 2: Locate the wires from the alarm clock board running to the speaker.
Clip the wires somewhere in the middle, leaving yourself enough room to be able to strip the wires back a bit on each side to eventually connect to.
* Note: I clipped the ground side too, so I could run a wire from that ground onto my circuit so they share a common ground; alternatively you could just solder a wire onto a ground on the alarm clock circuit board itself and leave that wire uncut.
Step 3: Connect wires running from each of the ends of the now clipped speaker wires to the circuit board.
One end of the +V speaker wire (the end coming from the circuit board) should be hooked up one end of the relay and to an ADC pin on the microcontroller. I also used a 1K resistor from here to the ground. Depending on the voltage your alarm clock is sending along the speaker wire, you may need to adjust that to get a good reading on that pin.
The other end of the +V speaker wire (the end going to the speaker) should be hooked up to the other end of the relay so that when the relay is flipped on, the two ends are connected and thus the buzzer will kick on like normal.
The ground wires should be hooked to a common ground on your breadboard.
Step 4: Use your multimeter to locate a 5-12 volt supply of power on your alarm clock circuit board that you can tap into to power your circuit.Once youve located this power source, solder a wire onto this and connect it to your circuits 5 volt regulator.
By reading the voltage on the +V speaker wire, we can now tell whether or not the alarm is going off. We can also choose to have the microcontroller flip on the buzzer or not using the relay, or make it a silent alarm, where only the microcontroller knows its going off.
From here, we now have a nice base to work with for any microcontroller project where wed like to be able to use a full featured alarm clock, which can be handy in a variety of types of projects.
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