# Category Archives: Fun Facts

## During Exam

Sir E: Class, prepare 3 sheets of short bond paper. No borrowing of calculator. Exam will start at exactly 10:29:29.99.

Exam (Photo credit: albertogp123)

Many of us were expecting tricky identification items and difficult problem solving parts that require complex solutions. After receiving my strip of paper, the following similar questions appeared:

1. Answer… in one to two sentences.
2. Describe… in one to two sentences.
3. Compare… in one to two sentences.

After copying all the questions and providing written answers below, written output consumed only about half of the first page. hehehehe..

## Practical Questions

Here are some practical math questions you might (ever) encounter:

Calculator (Photo credit: n_erd)

1. Anna wants to buy a portable media device with 3.54 inch display (measured diagonally) 960-by 640-pixel resolution. a.) What are the dimensions of the display (in cm) to the first decimal place?

2. Christine’s new 12-megapixel camera takes pictures with 3:4 aspect ratio. If she wants to print one photo to be placed in a 6-by 8-inch picture frame, how many dpi (dots per inch) the printed image would be?

3. Mary wants to photocopy a Math book from page 18 to page 34. If the machine operator can photocopy two pages in a sheet of bond paper and a bond paper worth of photocopied pages costs 50 centavos, how much will Mary pay?

## Resolve.

An excerpt from Mr. Kisuke:

I’m disappointed Ichigo, so very disappointed. Sadly, your sword exhibits only fear.

When you counter, it’s because you fear being killed. When you attack, you fear killing. And when you try to protect someone, you fear you could let them die.

At this point, the only thing your sword speaks of… is senseless freight. And that’s not good.

What you do not need in battle is fear. Nothing come of it.

When you counter, you don’t let them cut you. When you protect someone, you don’t let them die, when you attack, you kill. Understand? Can you see, my sheer resolve is reflected in my sword.

(after some battle…)

Oh yeah! You got it, resolve.

..>

[From Bleach Season 1]

## Practice makes perfect???

They say practice makes perfect but nobody is perfect, so why practice?

#### -anonymous

```- I just heard it elsewhere.
But according to our logic class, this syllogism can be classified
as a certain kind of fallacy.```

## How to take care the battery of your device

Image by amcgore via Flickr

The Lithium-ion battery which powers our device is very essential to keep our devices functional for a long period of time before recharging. However, our charging and usage habits may shorten its battery life. There are a lot of helpful articles out there that you may consult to extend battery life. Based from a research about some battery charging practices, the following are some tips that may be helpful to keep your battery hum longer:

### 1. Keep your device from high temperature.

Heat will cause your device battery capacity to degrade faster than any other factors. It is recommended to store and charge it in a cool environment.

### 2. Keep your battery from overcharging. Unplug charger when not in use.

Even though modern Lithium ion batteries are equipped with a smart circuit that prevents the battery from overcharging, it is still advisable to unplug your charger from the power outlet. Doing such prevents possible accidents due to overheating; you are also contributing towards greener environment. Most chargers still consume power even if the device they are charging has been fully charged or disconnected.

### 3. Keep your battery from draining.

Most devices have smart circuit in them that power off the device when the device has reached a certain battery threshold to prevent the battery from being totally drained.  It is harmful for a battery to be totally discharged for a long period of time. Apple recommends that you must charge your device immediately after your has been fully discharged even if you are not planning to use it.

### 4. Frequent and shorter charges are better than a single deep charge.

Charging some lithium ion batteries may increase the battery’s internal resistance which in turn reduces the battery’s current output. Moreover, performing a long deep charge places more stress on the battery than doing frequent short charges. Frequent short charges will not cause any harm to the battery.

### 5. Use tested and approved battery chargers.

Charger is one of the most dangerous accessories a user can ever plug into his device. iLounge reviewed and rated some iDevice chargers as Category E or F for the accessory being harmful to the device or the user. Some users experienced explosion while their devices are being charged. Approved chargers follow approved standards and specifications regarding proper charge current and voltage.

### 6. Charge your device using correct voltage.

Most chargers apply correct voltage to charge the battery without damaging any circuit component. Charging beyond the battery’s voltage specification has been proven to be fatal. According to a test performed at YouTube, applying a very low voltage did not charge the battery. After some time, the applied gradually increased causing the device to charge. After reaching a certain voltage, the device’s screen suddenly blacked out. The testers did not able to turn the device on successfully. This indicated damaged internal component.

### 7. Perform occasional charge cycles.

While a device is being used, its battery circuitry determines the battery’s remaining charge. It is also the one which determines whether the battery needs to be recharged or has been fully charged. After some time, the battery indicator may report remaining charge inaccurately. This may lead into shorter battery life than normal. This can be corrected by performing what so called a charge cycle. This is normally done once a month. This makes the battery charge reporting accurate. First, charge your device fully. When your battery has been fully charged, disconnect if from charger and use it until the battery runs out of charge without recharging. Care must be considered that the battery will not drain completely. As the battery charge level drops below 20%, reconnect the charger and charge it fully without any interruptions. Doing the method above will not increase charge capacity of the battery but will increase the accuracy of battery charge reported. Don’t do several charge cycles a month because doing such will may cause strain to the battery. Performing it once a month is just enough.

### 8. Replace your battery every two years or when the battery won’t hold sufficient charge.

Every time you charge your battery, its ability to hold a charge diminishes slightly until it can’t be able to hold enough charge to power the device for a long time. When this happens, consider replacing your battery. Batteries usually have specific number of charge cycles before it can be able to hold 80% of its capacity. This time duration may become longer or shorter depending on how frequent you use your device and intensive you use your device. The more frequent and intensive you use your device, the sooner you need to replace your battery.

### 9. Minimize unnecessary use of your device and battery.

Doing unnecessary use of charge in the battery wastes valuable and scarce charge cycles of the battery and energy. Turning off the device at night conserves more energy and charge cycle than putting it in sleep mode. Even though most devices drain its battery very little during sleep mode, some experience significant battery drop when they woke up.

### 10. Perform a charge cycle at least once a month whether or not you plan to use it.

According to a website, a lithium ion battery performs best when its electrons keep moving occasionally. These batteries degrade over time regardless of how you use them. These batteries degrade in time whether you use it intensively or store it in a cabinet. If you don’t plan to use your device for a very long time, make sure to perform a charge cycle at least once a month. On the other hand, if you plan to keep your device always plugged or docked, iLounge recommends disconnecting it for it to use up its battery before plugging or docking it again.

### 11. If you carry a spare battery, rotate its use with current battery.

The potential of the spare battery is not maximized if it sits doing nothing especially if its electrons in it don’t move occasionally. If this battery is not used, its battery capacity still degrades as the current battery degrades over time as the current battery.

### 12. Keep the battery from having short circuit or chemical leaks, exposing to fire, being punctured or improperly disposed.

To prevent accidents, keep the contacts of the spare or current battery from touching each other. Things like paper clips and metallic objects may touch the connectors and cause short circuit. This may cause fire or explosion. If you see leaks coming out of the battery, discontinue its use and dispose it according to government regulations without touching any part of your body. If the chemical touches your skin, wash it with plenty of water and consult a doctor. Moreover, never puncture or expose a battery in fire. Doing so will result in explosion and injury. Do not also dispose a used battery improperly because its chemicals can pollute our surroundings and is harmful to our environment. Dispose it according to government rules.

Doing such actions will not only make your device and battery last longer but it also contributes to the preservation of our environment.

`Recommendations are based from internet sources as well as opinions from forums.`

## How to safely turn off your computer without closing your work

Image via Wikipedia

What is hibernate?

If you want to turn off your computer to save energy and time without saving your work and closing your applications, Hibernate is the best feature of Windows to use. Mac OS Lion will features similar function as Hibernate in a different way. Check its website to learn more. Hibernate works similarly with Sleep.

What is the difference between sleep and hibernate?

Even though sleep saves the current state of your computer so you can resume it quickly, it consumes little power to power its RAM (random access memory). Hibernate saves the contents of the RAM into the reserved space of your hard drive or SSD before shutting itself down so you can resume quickly afterwards. Even though your machine does not consume any power during hibernation. It takes longer amount of time for your machine to go into and from hibernation than sleep.

Why does hibernation takes longer time to resume than sleep?

It is because your machine needs some time to copy the contents of the RAM to and from your Hard Drive or SSD.

How do I get my machine to hibernate?

There are a lot of ways to put your machine into hibernation mode.

A. Using Start Menu on Windows 7 and Vista

1.  Click the Windows Logo on the corner of your screen to open Start Menu.
2. Click the right button next to the Shutdown Button. Text or buttons shown vary.
3. Click Hibernate.

B. Using Start Menu on Windows XP

1. Click the Start Button.
2. Choose Turn Off Computer.
3. Select the Hibernate Button.

C. Using the keyboard

1. While in desktop, Press Alt + F4.
2. Press the down arrow repeatedly until you reach Hibernate.
3. Hit Enter.

1. Right Click the vacant space on your taskbar or press CTRL + ALT + DEL.
4. Select Hibernate.

1. Find the gadget in your desktop which includes Hibernate option if you installed that desktop gadget.
2. Scroll to the Hibernate button and click it.

E. Using a third-party application

1. It you have a utility application that includes a hibernate support, open it.
2. Consult its user guide about hibernation.

The last two methods are other possible options for Hibernation. I recommend either using the Start Menu or using the keyboard.

What if hibernation doesn’t work?

You probably have disabled Hibernation using Control Panel/ other third-party utilities or you don’t have enough disk space for hibernation. Search for Hibernation on Help and Support to find ways on enabling Hibernation. You can find additional information about hibernation here.

What if my computer goes to hibernation automatically?

Most probably is that your notebook battery reached its Critical Charge Level. Your computer saves your work and goes into hibernation before your battery runs out of charge. Either charge or plug your machine into a power source before turning on your computer.

How can I  resume from hibernation?

To resume from hibernation, press the power button just as the same way you turn your computer. Your computer will display Resuming Windows animation. You may be required to enter your password if you preconfigured your account with a password. After that, you can start working just as the same way you left it.

`Windows Help and Support`