Can You Believe Your Eyes?

Ever wonder how we can see something in front of us? Is it real? Can we believe with our eyes? Everything we saw was a representation of every light in different frequency enter our eyes. Our eyes receive signal from environment in form of visible lights ( 380 nm – 750 nm). When we see things with red colors, it means that thing absorb every light with wavelength beside 720nm -750nm but do reflect it. So everything we see was a reflection from a thing or a light that produced by a thing. From that conclusion, there will be a problem when we move at light like speed. Light can be represented as both particle (with mass and dimension) and …

How can I Make Myself Better Each Day

Become More Observant. Notice everything that surrounds you. The world is full of examples, ideas, words, wisdom, mistakes and experiences. Pay attention to details and use them to your own benefit. Collect Ideas. Ideas and thoughts tend to evaporate from your mind too fast. Try to capture them before it is too late. Ideally, write down or sketch every single one.Start Writing. The biggest value of a good writing skill is that it cultivates a discipline. First of all, the discipline of thinking. Your thoughts will cease to be random and chaotic. They will gradually become systematized and structured instead. Develop A Habit To Act. Constant thinking will not take you far from the place you are now. Actions will. …

Knowledge, Experience, Creativity

Someday your teacher said, F = m.a where a is vector of acceleration and m is a mass. Or it must be P = ρgh, p = m.v, W = ΔE blah blah blah. They are called knowledge and since we know it, we should able to create something. For example, from the second Newton equation, we can know many things like, thing must accelerate at the same direction as total force works into it and the heavier its mass, the more Force needed to make it accelerated more. But, how to apply that equation in our life? Have you ever wonder why our car need an adjustable brake and accelerator pedal? why don’t they make it single value? And why bigger airplane need bigger wings to …

Why does not Aircraft Cabin Pressurized as Ground Level

Have you got your ear numb when you’re moving from one altitude to another one? It may happen when you use high elevator or mostly when you’re inside a takeoff or landing aircraft. In normal circumstances the air pressure is the same on both sides of our eardrums. But when the pressure in our environment changes significantly, the pressure on the outside of the eardrum is no longer the same as that on the inside. This pressure difference is eventually regulated by the Eustachian tube, a sort of air canal that links the middle ear to the back of the throat. If your eardrum can’t take the pressure difference, It will do the same as a balloon will blown up when it fly too high. …

How Tree Got Its Masses

Tress is one of the biggest thing that take place on our earth. Ever thinking how the tress in front of your house become so big and have a massive mass? Where are the mass come from? Put it in your mind and try to find it ! As Antoine Lavoisier said that mass in a closed system will be always has a same amount, so with the trees! In early 1960’s, a scientist Jan Baptist van Helmont try to figure out where the mass on tree is coming from. He make an experiment by measure a mass of soil and planted a plant over it. After take care the tree over 5 year, he pull it off and measure the soil’s mass. He found that the …

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