I have been writing with a vile old pen the whole week, which is excessively ungallant. The fault is in the Quill. I have mended it and still it is very much inclin’d to make blind e’s. However these last lines are in a much better style of penmanship though a little disfigured by the smear of black currant jelly, which has made a little mark on one of the Pages of Brown’s Ben Jonson, the very best book he has. I have lick’d it but it remains very purple. I did not know whether to say purple or blue, so in the mixture of the thought wrote purplue which may be an excellent name for a colour made up of those two, and would suit well to start next spring.
– John Keats
This is like the funniest thing in the world to me for so many reasons
noted Romantic poet complaining about his pen being leaky like a petulant two year old
also spilling jelly on his friends book
and immediately trying to cover it up by LICKING IT #relatable
In optics the refractive index or index of refraction n of an optical medium is a dimensionless number that describes how light, or any other radiation, propagates through that medium. It is defined as
where c is the speed of light in vacuum and v is the phase velocity of light in the medium.
For example, the refractive index of water is 1.33, meaning that light travels 1.33 times faster in a vacuum than it does in water.
Physics of invisibility.
If you want to make something invisible,you have to ensure that the index of refraction of the object and the medium where you are hiding it remain the same and also that the object is transparent and colorless.
Those are not mystical drops of water from heaven in the animation, but mere polymer balls. The reason why they turn invisible once dropped into water is because their index of refraction and that of water are the same and as you can see they are also colorless and transparent. Thus creating the illusion of invisibility.
What would happen if they were colored is a topic for another post.
Fun Fact.
If you would like to take a bite at something like this, then japan has the perfect dish for your palette.
Franz Kafka, the story goes, encountered a little girl in the park where he went walking daily. She was crying. She had lost her doll and was desolate.
Kafka offered to help her look for the doll and arranged to meet her the next day at the same spot. Unable to find the doll he composed a letter from the doll and read it to her when they met.
“Please do not mourn me, I have gone on a trip to see the world. I will write you of my adventures.” This was the beginning of many letters. When he and the little girl met he read her from these carefully composed letters the imagined adventures of the beloved doll. The little girl was comforted.
When the meetings came to an end Kafka presented her with a doll. She obviously looked different from the original doll. An attached letter explained: “my travels have changed me… “
Many years later, the now grown girl found a letter stuffed into an unnoticed crevice in the cherished replacement doll. In summary it said: “every thing that you love, you will eventually lose, but in the end, love will return in a different form.”
For me there are two wise lessons in this story: Grief and loss are ubiquitous even for a young child. And the way toward healing is to look for how love comes back in another form. – May Benatar
EY FATTY BOOM BOOM 