“It’s the unknown we fear when we look upon death and darkness, nothing more.”
writing papers for elementary foreign language classes makes me feel so dumb because in english i’m fairly articulate but i literally just wrote in german: “I have a door. the door is big. the door is brown. i have a room.” i’m handing this in for a grade.
The cultures which inspired Avatar: The Last Airbender
- Air Nomads - The Monasteries of Tibet
- Water Tribe - The Inuit
- Earth Kingdom - Imperial China
- Fire Nation - Pre-Meiji Japan
What the technical term for the shape of a cubic function? Squiggly.
Pre-calculus instructor (via mathprofessorquotes)
An axiom is a mathematical truth, just basically something you have to accept… another reason math is like religion.
Linear algebra professor (via mathprofessorquotes)
There is one thing I am not telling you and it is probably critical.
Linear algebra professor, SPSU (via mathprofessorquotes)
How many cops does it take to screw in a light bulb?
None. They just beat the room for being black.
Putting on your socks and then your shoes is not the same as putting on your shoes and then your socks.
Abstract algebra professor while holding his foot up for everyone to see (via mathprofessorquotes)
This lamp absorbs 150 times more CO2 than a tree
It’s still in the “so crazy it just might work” stage, but these microalgae-powered lamps, invented by French biochemist Pierre Calleja, could absorb a ton of carbon from the air every year. That’s as much as 150 to 200 trees. [x]
YOU DON’T UNDERSTAND. This is ingenious.
The design is a light bulb surrounded by a glass casing. The glass is filled with (water based) media and microalgae. The top is permeable to gasses so that gas exchange can occur. All of the wiring is linked to the grid underground.
Since the light source is inside, it gets scattered and “dimmed” by the water and algae. This makes it less glaringly bright and scatters the light wider, which is good for a street light. It is not longer white light as well, which helps make it easier on the eyes while still providing light.
At the same time, it provides the light for photosynthesis in the algae, so they are continuously exchanging CO2 for O2, not just in the day. It also provides a source of heat, which helps keep the algae from going dormant during cold weather (as in the snowy picture above).
And notice how I did not specify permeability - that’s because NOx’s (NO and NO2) are also permeable and can be used as nitrogen sources to microalgae. In fact, algae are relatively low maintenance. As autotrophs, they don’t require super complex media, not does it really need to be changed/added to. (I’m actually fairly certain that there would still be algae in these tanks a year later; it may need to be cleaned or something, but there would be some living algae.)
#bilbo or watson