Wednesday, February 25, 2009

Microwaving water to a boil


Not all of it is true, but microwaving water does lead it to become superheated. The likeliness of that ever happening are slim but its better to keep to the safer side than regret later.

Use a dipper or place your tea bag in the cup before heating your cup of daily brew in your microwave.

For a better review of the concept go here!

---------- Forwarded message ----------
 
Wow, how many of us do that?

Microwaving Water!

A 26-year old man decided to have a cup of coffee. He took a cup of water and put it in the microwave to heat it up (something that he had done numerous times before). I am not sure how long he set the timer for, but he wanted to bring the water to a boil. When the timer shut the oven off, he removed the cup from the oven. As he looked into the cup, he noted that the! water was not boiling, but suddenly the water in the cup 'blew up' into his face. The cup remained intact until he threw it out of his hand, but all the water had flown out into his face due to the build up of energy. His whole face is blistered and he has 1st and 2nd degree burns to his face which may leave scarring.

He also may have lost partial sight in his left eye. While at the hospital, the doctor who was attending to him stated that this is a fairly common occurrence and water (alone) should never be heated in a microwave oven. If water is heated in this manner, something should be placed in the cup to diffuse the energy such as a wooden stir stick, tea bag, etc.., (nothing metal).


General Electric's Response:


Thanks for contacting us, I will be happy to assist you. The e-mail that you received is correct. Microwaved water and other liquids do not always bubble when they reach the boiling point. They can actually get superheated and not bubble at all. The superheated liquid will bubble up out of the cup when it is moved or when something like a spoon or tea bag is put into it.

To prevent this from happening and causing injury, do not heat any liquid for more than two minutes per cup. After heating, let the cup stand in the microwave for thirty seconds! before moving it or adding anything into it.

Here is what our local science teacher had to say on the matter: 'Thanks for the microwave warning. I have seen this happen before. It is caused by a phenomenon known as super heating. It can occur anytime water is heated and will particularly occur if the vessel that the water is heated in is new, or when heating a small amount of water (less than half a cup).

What happens is that the water heats faster than the vapor bubbles can form. If the cup is very new then it is unlikely to have small surface scratches inside it that provide a place for the bubbles to form. As the bubbles cannot form and release some of the heat has built up, the liquid does not boil, and the liquid continues to heat up well past its boiling point.

What then usually happens is that the liquid is bumped or jarred, which is just enough of a shock to cause the bubbles to rapidly form and expel the hot liquid. The rapid formation of bubbles is also why a carbonated beverage spews when opened after having been shaken.'


If you pass this on
you could very well save someone from a lot of pain and suffering.

Sunday, February 22, 2009

Some laws which Newton forgot to explain

LAW OF QUEUE: If you change queues, the one you have left will start to move faster than the one you are in now.

LAW OF TELEPHONE: When you dial a wrong number, you never get an engaged one.

LAW OF MECHANICAL REPAIR : After your hands become coated with grease, your nose will begin to itch.

LAW OF THE WORKSHOP: Any tool, when dropped, will roll to the least accessible corner

LAW OF THE ALIBI: If you tell the boss you were late for work because you had a flat tire, the next morning you will have a flat tire.

BATH THEOREM: When the body is immersed in water, the telephone rings.

LAW OF ENCOUNTERS: The probability of meeting someone you know increases when you are with someone you don't want to be seen with.

LAW OF THE RESULT: When you try to prove to someone that a machine won't work, it will!

LAW OF BIOMECHANICS: The severity of the itch is inversely proportional to the reach

THEATRE RULE: People with the seats at the furthest from the aisle arrive last

LAW OF COFFEE: As soon as you sit down for a cup of hot coffee, your boss will ask you to do something which will last until the coffee is cold.

Thursday, February 19, 2009

[Joke] Job at the FBI

The FBI had an opening for an assassin.

After all the background checks, interviews and testing were done, there were 3 finalists;

Two men and a woman.
For the final test, the FBI agents took one of the men to a large metal door and handed him a gun.
'We must know that you will follow your instructions no matter what the circumstances. Inside the room you will find your wife sitting in a chair. Kill her!'
The man said, 'You can't be serious. I could never shoot my wife.'
The agent said, 'Then you're not the right man for this job. Take your wife and go home.'

The second man was given the same instructions.
He took the gun and went into the room. All was quiet for about 5 minutes.

The man came out with tears in his eyes,'I tried, But I can't kill my wife.' The agent said, 'You don't have what it takes. Take your wife and go home.'

Finally, it was the woman's turn. She was given the same instructions, to kill her husband. She took the gun and went into the room. Shots were heard, one after another. They heard screaming, crashing, banging on the walls.
After a few minutes, all was quiet. The door opened slowly and there stood the woman, wiping the sweat from her brow.
'This gun is loaded with blanks' she said. 'I had to beat him to death with the chair.'

MORAL: Women are crazy!!! Don't mess with them!!!

Sunday, February 15, 2009

My Time's up?

A 54 year old woman had a heart attack and was taken to the hospital.
While on the operating table she had a near death experience.

Seeing God she asked, 'Is my time up?'

God said, 'No, you have another 43 years, 2 months and 8 days to live.'

Upon recovery, the woman decided to stay in the hospital and have a
face-lift, liposuction, breast implants and a tummy tuck. She even had
someone come in and change her hair color and brighten her teeth!
Since she had so much more time to live, she figured she might as
well make the most of it.

After her last operation, she was released from the hospital. While
crossing the street on her way home, she was killed by an ambulance.

Arriving in front of God, she demanded, 'I thought you said I had
another 43 years? Why didn't you pull me from out of the path of the
ambulance?'


(You'll love this)

- God replied, 'I didn't recognize you.'

Thursday, February 12, 2009

American Genius

An Israeli doctor says, 'Medicine in my country is so advanced that we can take a kidney from one man; put it in another, and have him looking for work in six weeks.'

A German doctor says, 'That is nothing; we can take a lung from one person, put it in another, and have him looking for work in four weeks.'

A Russian doctor says, 'In my country, medicine is so advanced that we can take half a heart from one person, put it in another, and have them both looking for work in two weeks.'

Not to be outdone the Texas doctor says, 'You guys are way behind. We recently took a man with no brains out of Texas; put him in the White House for eight years, and now half the WORLD is looking for work.'

Wednesday, February 4, 2009

3 wishes for a woman

A Woman was out golfing one day when she hit the ball into the woods.

She went into the woods to look for it and found a frog in a trap.

The frog said to her, "If you release me from this trap, I will grant you three wishes."

The woman freed the frog, and the frog said, "Thank you, but I failed to mention that there was a condition to your wishes.

Whatever you wish for, your husband will get times ten!"

The woman said, "That's okay."

For her first wish, she wanted to be the most beautiful woman in the world.

The frog warned her, "You do realize that this wish will also make your husband the most handsome man in the world, an Adonis whom women will flock to".

The woman replied, "That's okay, because I will be the most beautiful Woman and he will have eyes only for me."

So, KAZAM-she's the most beautiful Woman in the world!

For her second wish, she wanted to be the richest woman in the world.

The frog said, "That will make your husband the richest man in the world. And he will be ten times richer than you."

The woman said, "That's okay, because what's mine is his and what's his is mine."

So, KAZAM-she's the richest woman in the world!

The frog then inquired about her third wish, and she answered, "I'd like a mild heart attack."

Moral of the story: Women are clever. Don't mess with them.

Attention female readers: This is the end of the joke for you. Stop here and continue feeling good.

Male readers: Please scroll down.

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..
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The man had a heart attack ten times milder than his wife .

Moral of the story: Women are really dumb but think they're really smart.


Let them continue to think that way and just enjoy the show

PS: If you are a woman and are still reading this; it only goes to show that women never listen!!!

Forward this to all the guys for a good laugh, and to all the ladies who have a good sense of humour.

Tuesday, February 3, 2009

True Courage

WHAT IS COURAGE?

To tell your wife you have a lover?

Extreme skiing?

Jump from the helicopter?

Insult your boss?


Go fast on the bike ?


Bungee Jumping?


ALL THOSE THINGS ARE A JOKE
...

THIS IS COURAGE:




Sunday, February 1, 2009

Warren Buffet's advice for 2009

Warren Buffet's advice for 2009

We begin this New Year with dampened enthusiasm and dented optimism.
Our happiness is diluted and our peace is threatened by the financial
illness that has infected our families, organizations and nations.
Everyone is desperate to find a remedy that will cure their financial
illness and help them recover their financial health. They expect the
financial experts to provide them with remedies, forgetting the fact
that it is these experts who created this financial mess.

Every new year, I adopt a couple of old maxims as my beacons to guide
my future. This self-prescribed therapy has ensured that with each
passing year, I grow wiser and not older. This year, I invite you
totap into the financial wisdom of our elders along with me, and
become financially wiser.

* Hard work: All hard work bring a profit, but mere talk leads only to poverty.

* Laziness: A sleeping lobster is carried away by the water current.

* Earnings: Never depend on a single source of income. [At least make
your Investments get you second earning]

* Spending: If you buy things you don't need, you'll soon sell things you need.

* Savings: Don't save what is left after spending; Spend what is left
after saving.

* Borrowings: The borrower becomes the lender's slave.

* Accounting: It's no use carrying an umbrella, if your shoes are leaking.

* Auditing: Beware of little expenses; A small leak can sink a large ship.

* Risk-taking: Never test the depth of the river with both feet. [Have
an alternate plan ready ]

* Investment: Don't put all your eggs in one basket.

I'm certain that those who have already been practicing these
principles remain financially healthy. I'm equally confident that
those who resolve to start practicing these principles will quickly
regain their financial health.

Let us become wiser and lead a happy, healthy, prosperous and peaceful life.

HELL EXPLAINED BY CHEMISTRY STUDENT

The following is an actual question given on a University of Washington chemistry mid term. The answer by one student was so 'profound' that the professor shared it with colleagues, via the Internet, which is, of course, why we now have the pleasure of enjoying it as well :

Bonus Question: Is Hell exothermic (gives off heat) or endothermic (absorbs heat)? Most of the students wrote proofs of their beliefs using Boyle's Law (gas cools when it expands and heats when it is compressed) or some variant.

One student, however, wrote the following:

First, we need to know how the mass of Hell is changing in time. So we need to know the rate at which souls are moving into Hell and the rate at which they are leaving. I think that we can safely assume that once a soul gets to Hell, it will not leave. Therefore, no souls are leaving. A s for how many souls are entering Hell, let's look at the different religions that exist in the world today.

Most of these religions state that if you are not a member of their religion, you will go to Hell. Since there is more than one of these religions and since people do not belong to more than one religion, we can project that all souls go to Hell. With birth and death rates as they are, we can expect the number of souls in Hell to increase exponentially. Now, we look at the rate of change of the volume in Hell because Boyle's Law states that in order for the temperature and pressure in Hell to stay the same, the volume of Hell has to expand proportionately as souls are added.

This gives two possibilities:
  1. If Hell is expanding at a slower rate than the rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all Hell breaks loose.
  2. If Hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over. So which is it?
If we accept the postulate given to me by Teresa during my Freshman year that, 'It will be a cold day in Hell before I sleep with you,' and take into account the fact that I slept with her last night, then number two must be true, and thus I am sure that Hell is exothermic and has already frozen over.

The corollary of this theory is that since Hell has frozen over, it follows that it is not accepting any more souls and is therefore, extinct.......leaving only Heaven, thereby proving the existence of a divine being which explains why, last night, Teresa kept shouting 'Oh my God.'

THIS STUDENT RECEIVED AN A+.

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