Maria

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quantumaniac: The Physics of Straws Straws, how complicated can they be? Most people have a few misconceptions about how straws work, but just like everything else - the answer lies with physics.  Upon placing the straw in a regular cup of water, the pressures inside and outside of the straw are equal! You can see this by noticing that the level of the water and in the glass are the same - both reach the same height of the straw.  When you suck on the straw, you are effectively decreasing the pressure in your mouth - and this lowers the pressure at the top of the straw. As soon as this happens, the force of the atmosphere pushing on the water in the glass is higher than the force of the gases inside the straw. Since pressure acts from high to low, the atmosphere forces the liquid water up the straw. In essence, you are not sucking the water into your mouth, but the atmosphere is pushing it!  Explain this to your friends the next time you’re out to eat - then write down a few bogus equations and they’ll think you’re a genius. 

quantumaniac:

The Physics of Straws

Straws, how complicated can they be? Most people have a few misconceptions about how straws work, but just like everything else - the answer lies with physics. 

Upon placing the straw in a regular cup of water, the pressures inside and outside of the straw are equal! You can see this by noticing that the level of the water and in the glass are the same - both reach the same height of the straw. 

When you suck on the straw, you are effectively decreasing the pressure in your mouth - and this lowers the pressure at the top of the straw. As soon as this happens, the force of the atmosphere pushing on the water in the glass is higher than the force of the gases inside the straw. Since pressure acts from high to low, the atmosphere forces the liquid water up the straw. In essence, you are not sucking the water into your mouth, but the atmosphere is pushing it! 

Explain this to your friends the next time you’re out to eat - then write down a few bogus equations and they’ll think you’re a genius. 

629 notes

Love never dies a natural death. It dies because we don’t know how to replenish its source. It dies of blindness and errors and betrayals. It dies of illness and wounds; it dies of weariness, of witherings, of tarnishings.
Anaïs Nin (via mermaidporn)

238 notes

pantheonbooks: “That is part of the beauty of all literature. You discover that your longings are universal longings, that you’re not lonely and isolated from anyone. You belong.” ― F. Scott Fitzgerald

pantheonbooks:

“That is part of the beauty of all literature. You discover that your longings are universal longings, that you’re not lonely and isolated from anyone. You belong.”

― F. Scott Fitzgerald

336 notes

I do not love you as if you were salt-rose, or topaz,
or the arrow of carnations the fire shoots off.
I love you as certain dark things are to be loved,
in secret, between the shadow and the soul.

I love you as the plant that never blooms
but carries in itself the light of hidden flowers;
thanks to your love a certain solid fragrance,
risen from the earth, lives darkly in my body.

I love you without knowing how, or when, or from where.
I love you straightforwardly, without complexities or pride;
so I love you because I know no other way

than this: where I does not exist, nor you,
so close that your hand on my chest is my hand,
so close that your eyes close as I fall asleep.

Pablo Neruda (via absentubiquity)