Mathematics is one subject that if you know it well, you will enjoy it but if you don’t then it will make your life hell. Learning maths can be fun if it does not involve strict maths teachers (I have usually found maths teachers to be quite strict) and student is able to get answer and clear explanation of everything no matter how simple it is or difficult. Students are shy in asking questions in class because they think they question they are going to ask is very simple one and students of class will make fun.

Math answers if easily available with clear explanation then all left for the student is to give it a time in understanding how its done, which formulas are used, learn the formula if he/she don’t know it already and then practice the question few times. Practicing is very important in mathematics. I understood this when I needed Calculus help and no matter how many formulas I learned, I was not able to do tougher problems of calculus. Then I came to know that practicing is all I need and I will have to practice so many problems that in exam no calculus problems should look new to me. Only then I would be able to solve else it may take lots of time to solve it and in exam we have limited time. Precalculus help is also an important thing to get equally for better understanding of this topic.

If you drive a car then sometimes you must have noticed fatigue and you might have not given it attention thinking of just temporarily weakness. Problem can be with your car too! After some usage the driving may not remain the same as it is with a brand new car but you can do some bits to keep it running like “out of showroom” and most importantly save yourself from unnecessary fatigue.

When we drive the car, we have so many things to do drive car safely on road that not for a single minute we are relaxed. This lead to brain not giving you feedback of how hard your clutch pedal has become and how much pressure you are putting on brakes and accelerator. Even gear change may not be as smooth as before but since it’s a small change that we don’t notice it but it doesn’t mean its not affecting our body.

Next time when you start driving your car, take your car on a quite and lonely road where you can concentrate on the feedback your car is giving and not risk others on road while noticing all this. Drive the car with calm mind and see if you need to put more pressure on clutch pedal than you needed before or just anything that is causing discomfort. Stop and make a list of it. Next time you go to service, get those all fixed with your full satisfaction. Before you go for any major repair, it will be better to check a new model of your car. Suppose you feel that clutch is tight and your service center suggest clutch overhaul then first check a new car in showroom which will give you feel of exactly “how much” tight is your car’s clutch. If there is only slight difference then tell them to change clutch cable only and see if that brings the clutch smoothness and lightness back to normal.

Other cause of fatigue is longer drive on congested roads. Traffic means you will have to change gear frequently, use clutch also again and again, basically you will be involved in doing many task for longer time that will strain your body and mind. Avoid routes that are prone to traffic jams. Also carry some slow and soothing songs with nice tune that you should listen on low volume, it will keep you relaxed and you won’t get irritated easily.

Use AC if it’s hot outside and even if you feel you can do without it, switch it ON. We don’t feel much heat because when door glass are rolled down, we get lots of air circulation but under the seat there is no air circulation and without our knowledge its getting too much heated there.

Footwear also play important role. If you wear shoes with thicker soles, it gives less control on all the pedals operated by foot. Wear shoes with thinner soles but not too thin either. Just see which of your shoes gives best control and ease of operation as it can vary from person to person. I like wearing thin sole sandals as they give me best control and comfort while most people like proper shoes.

Now you can save you thousands of bucks that you might spend on buying car or bike or just any lead acid battery even when its not needed. Lead Acid battery plates develop sulphur with aging and this blocks current leading to low voltage and a time comes when battery is no more able to maintain 12v and car does not start.

I have tried this trick on my car battery which went dead few days back, just 10v was left in it and was going down to 4v on using self. First I tried charging it using battery charger for one whole day and night but I found as soon as I remove it from charging, it would go to 10v at once. So battery was dead, there was no reaction (bubbles) in one of the cell. I was about to change my battery then found this tip and it worked for me

The real thing:
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When you are not able to recharge the battery and it won’t maintain 13v then do this.

1. Open all the caps (from where you fill water) of cell and drain the acid. (You can use this acid to remove algae). Please do this cautiously, wear surgical gloves and goggles to protect your eyes and hand from acid.

2. Take an empty 600ml plastic cold drink bottle, fill it with distill water and add 2 teaspoon of magnesium sulfate in it. Shake shake shake! shake it well untill all the salt gets dissolved in distill water. You can get magnesium sulfate from people who supply chemicals in school labs.

3. Fill each cell with this magnesium sulfate solution you just prepared, don’t overfill, just about 0.5 inch above plates is good. Tap the battery from each side so that air bubbles trapped in plates escape.

4. Don’t put the caps back, leave battery open and put it on charging. I used 5 Amp charger for my 35 Amp car battery. Charge it for atleast 24 hours. Use atleast 10% current for charging, for example your battery is of 12v and 65 Amp then use atleast 6.5 Amp current and 13.8V for charging. I would recommend slightly higher of about 8 or 9 Amp.

5. Remove battery from charging and check voltage. Wear your goggles and peep in cell using a torch to see tiny bubbles coming up from each cell plates. This indicate that your cells are working! If you don’t see this then your battery needs more charging. If you do see bubbles and battery voltage remains constant between 12.6 – 14v then you just saved your battery and it can be used in your car now!

The magnesium sulphate solution will turn into acid when battery is charged so you don’t need to add acid later. If you feel electrolyte level has gone down after this long charging, you can add distill water. But remember don’t overfill the cells as overfilled cells with experience slow charging.

Disclaimer: Use this tip at your own risk, in no case I will be held responsible for any accidents or loss caused by trying tip described above.

Wonder how loud these small speakers can be which you see in the picture above? These speakers though small have inbuilt rechargeable batteries, so no external power source is needed (think about mobility and outdoor use) but does these speakers give enough output for outdoor use? All these questions come to halt when we actually played a song outside with just one speaker and some of the over sensitive ear creatures (read girls) had their fingers in their ear. Twist them and they open from middle to give some bass too! This is new technology, which enables these small speakers to give bass. Don’t expect glass breaking bass but its definitely good than having no bass at all. Speakers look well built and plastic used feels solid as well as nice to touch. Finishing of this product is very good, no sharp edges anywhere. Turn the speakers on and you will see bright nice looking blue LED and when you plug these speakers in USB for charging, the same blue LED will turn red.

Suppose you buy a pair of these speakers and your friends too, now don’t regret why you all bought same thing because interesting part is you can attach any numbers of these x-mini speakers together and you guessed right, sound output will be just mind blowing! More the number of x-mini speakers, more will be the sound output. So tell all your friends to get these and have a blast.

X-mini comes with a 3.5mm audio jack which is a kind of industry standard and can be found on most mp3 players, multimedia phones, laptop etc even if has sometime different then there are always adapters available so mating x-mini speakers with your multimedia device should never be a problem. My friend found these speakers very useful for his laptop as laptop speakers are not very powerful and does not always offer good quality sound and he is a movie freak watching moving on his laptop is his favorite pastime. Being small he can carry them in his laptop bad very easily and since it does not need external power, it does not drain his laptop battery as well.

I am enjoying these x-mini speakers and will keep posting more about them.

UPDATE: X-mini speakers featured on CNBC TV18 Tech Toyz Show as one of the must have Work Station Gadget. Sweet!

The year 2009 is going to end soon and in this holiday season most of us may not be going on long vacation and spending time at home watching TV. To bring more channels on your TV at affordable rates Direct TV has introduced special offers, which will bring you lots of saving all year. What makes this deal even better that it does not require you to stand in any queue or fill out lengthy forms, all it takes is just one phone call and you are good to go.

Talking about the quality of channels you get, its just awesome. With Satellite Directv you get many high definition channels of all genres to enjoy with your family together. Enjoy movies, sports and other favorite programs at crystal clear clarity on your TV with Direct TV. All this at a low price of just about $1 per day, yes you heart right at a monthly price of just $29.99 you get 150+ digital channels.

There is one more offer which Direct TV is offering its customers and that is a Visa pre paid card worth $100 free, this is special holiday offer. Bring Direct Satellite TV to your home and make best of your holidays!

When someone buys a car, there are some strong reasons behind it. No one just decides for a car in few minutes and get whatever brand and model he finds first. If have decided that you only need a brand new car because of some special reasons (there can be many) then no need to read further, for people who can think of used car as option, read on the benefits. First of all the main reason you buy a car is to move around, go to places. The first benefit of a used car is the price. You get it for much less than new one and price depreciation is almost nil. For example if one buys a new car for say 4000$ then after 4 years no one will buy it for $4000 again from you no matter how good is the condition of car and how much you have spent on this car in 4 years for accessories. But if I buy a used car for $2000, after using it for 4 years I can still sell it for $2000 if I maintain it well and find a good customer. Of course it doesn’t mean you had a free ride all these 4 years because used car may sometime need more attention (money) on its maintenance and may also consume more fuel than newer models.

Second biggest benefit I personally feel is freedom. Freedom in sense that I don’t feel uncomfortable taking my car to those narrow streets where it is prone to scratches. Also I can park it anywhere and as I am sure its not shiny new to attract people do vandalism. Bad roads are also not a big problem for used car owners because they know if any damage will be cheaper to repair than new models. So the basic purpose of car that is moving people around is best fulfilled by a used car. For people who have lots of money, it may not make sense but it’s for those for whom buying a new car means a lot of money.

Old technology used in your used car may not give you best fuel efficiency and refinement but it has other great benefits. Maintenance cost is much less; easy to repair and less parts even means more reliability. Today car have so much electronics in them that failure in even one part can leave you stranded on road. I am not against new car technology but this can be counted as a drawback you get with new cars. One big example is of timing belt. If a newer generation car engine have timing belt failure (it’s a rubber belt so it can break) it means your car will have to spend lots of time in garage for repairs and you need to shell out lots of money, for older cars, it does not take even an hour to change the belt and you only need to change the belt, nothing else and you are good to go. These were the few reasons that go in favor of used car, I might write more reasons as I experience with my own used car that I am happily driving since 4 years.