Everybody knows what a reflection is. You look at yourself in the mirror and you get the reflection of your face. Now that's reflection.
But what is refraction?
But what is refraction?
22 May 2011
21 May 2011
Hi Everybody!
I was browsing through the net just to find out how the color, magenta got its name. (Magenta is my favorite color!)
So, I found this website which explains why magenta was not in the color spectrum.
Why not head over to the website and check it out. There are even some eye exercise where your eyes will play a trick on you! It's awesome! I'm sure you'll be amazed by it!
Come on.. Head on over to this website and check it out for yourself.
Magenta Ain't A Color
I was browsing through the net just to find out how the color, magenta got its name. (Magenta is my favorite color!)
So, I found this website which explains why magenta was not in the color spectrum.
Why not head over to the website and check it out. There are even some eye exercise where your eyes will play a trick on you! It's awesome! I'm sure you'll be amazed by it!
Come on.. Head on over to this website and check it out for yourself.
Magenta Ain't A Color
14 May 2011
More often than not, if you choose a career that doesn't suit your personality you become confused, unhappy and no one wants a job they hate. So instead of choosing a career based on what you think you should do, use our career quiz to help you find a career that is right for you. Our job test is the first step in helping you find a job that make you want to get up in the morning.
Take the test here: What Career Will Suit Your Personality?
View my results here: My Results
12 May 2011
Looks delicious eh???
Ingredients
For the crumble:
• 35g rolled oats
• 35g wholemeal flour
• 20g caster sugar
• 35g margarine or butter
For the filling:
• 400g cooking apples, peeled, cored and quartered
• 50g sugar, to sweeten
• 1 tablespoon water
Method
Preheat the oven to 190°C/375°F/gas 5. Peel and core the apples, quarter and cut in to chunks.Put the apples in to a pan with the sugar and water. Cook over a low heat for 5 minutes and place in a small oven proof dish.Place the flour and oats in a bowl and mix well. Cut the margarine or butter in to small cubes and add this to the oats and flour. Mix with your fingertips until it resembles an even crumb texture. Add the sugar and mix through. Cover the fruit with the crumble mixture. Bake for approximately 20 minutes until the crumble is golden and the apple hot. Preheat the oven to 190°C/375°F/gas 5. Peel and core the apples, quarter and cut in to chunks.
Put the apples in to a pan with the sugar and water. Cook over a low heat for 5 minutes and place in a small oven proof dish.
Place the flour and oats in a bowl and mix well. Cut the margarine or butter in to small cubes and add this to the oats and flour. Mix with your fingertips until it resembles an even crumb texture. Add the sugar and mix through.
Cover the fruit with the crumble mixture. Bake for approximately 20 minutes until the crumble is golden and the apple hot.
Servings: 5
Source: Jamie Oliver's Recipe
07 May 2011
Have you ever thought why a small stone sinks in water while a big ship can stay afloat in the sea? Well, physics can explain this.
In 212 BC, Archimedes who was a Greek mathematician, physicist, engineer, inventor and astronomer discovered a principle, now known as the Archimedes’ Principle which states that “for a body immersed wholly or partially in a fluid, the upward force (known as the buoyant force) acting on the body is equal to the weight of fluid displaced by it.”
This means that if a wooden block of 600g is placed in water and only half the block sinks in water, the weight of the water displaced is equal to the weight of block immersed in water which is 300g.
Weight of the object immersed in water = weight of water displaced
Therefore, this principle of floatation is used to explain any objects that float in a liquid. Questions like why ice float in your drink, why stone sinks in water and why a ship floats on water can be explained using this principle.
You see, a stone sinks in water because its density is much higher than water which has a density of 1000 kg per meter cube. However, even though a ship is heavy and has a much higher density than water, it can float due to its hollow shape which displace large amount of water as a result which the buoyant force is enough to support its weight.
When more loads are added to the ship, it must sink more so as to displace more water. To prevent overloading, a plimsoll line is marked on its body to show the maximum depth the portion of ship that can be immersed in water. The plimsoll line functions as an indication to the level of danger as the density of sea water varies with location.
A ship will be submerged deeper in fresh water because its density of fresh water is less than sea water. For this reason, ship will have to displace more water to obtain sufficient buoyant force to support its weight. A ship can float higher in cold seasons as cold water had a higher density.
So, now you know why a ship can stay afloat compared to a small stone that sinks. Basically, the shape and overall density of an object are important factors in determining its ability to float.
To find out more, click here.
In 212 BC, Archimedes who was a Greek mathematician, physicist, engineer, inventor and astronomer discovered a principle, now known as the Archimedes’ Principle which states that “for a body immersed wholly or partially in a fluid, the upward force (known as the buoyant force) acting on the body is equal to the weight of fluid displaced by it.”
This means that if a wooden block of 600g is placed in water and only half the block sinks in water, the weight of the water displaced is equal to the weight of block immersed in water which is 300g.
Weight of the object immersed in water = weight of water displaced
Therefore, this principle of floatation is used to explain any objects that float in a liquid. Questions like why ice float in your drink, why stone sinks in water and why a ship floats on water can be explained using this principle.
You see, a stone sinks in water because its density is much higher than water which has a density of 1000 kg per meter cube. However, even though a ship is heavy and has a much higher density than water, it can float due to its hollow shape which displace large amount of water as a result which the buoyant force is enough to support its weight.
When more loads are added to the ship, it must sink more so as to displace more water. To prevent overloading, a plimsoll line is marked on its body to show the maximum depth the portion of ship that can be immersed in water. The plimsoll line functions as an indication to the level of danger as the density of sea water varies with location.
A ship will be submerged deeper in fresh water because its density of fresh water is less than sea water. For this reason, ship will have to displace more water to obtain sufficient buoyant force to support its weight. A ship can float higher in cold seasons as cold water had a higher density.
So, now you know why a ship can stay afloat compared to a small stone that sinks. Basically, the shape and overall density of an object are important factors in determining its ability to float.
To find out more, click here.
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