M4rt4's life

laureola:

the-science-llama:

The color of the Aurora depends on the altitude and the atom being struck by solar radiation (causing excitation). At higher altitudes, there is more Atomic Oxygen than Nitrogen, leading to the common color stratifications you see.

500-200 km altitude
— Atomic Oxygen — Red
200-100 km
— Atomic Oxygen — Greenish-Yellow
— Ionized Nitrogen — Blue/Purple
100-80 km
— Nitrogen (N2) — Crimson

Oxygen only emits red at higher altitudes because once it’s excited, it takes a longer time to emit red than it does green. Why is that important? Well, at lower altitudes there is more Nitrogen for the Oxygen to bump into and absorb that excitation-energy before it gets a chance to emit red light. In this case, where the collision occurs, the Oxygen will emit Green and at low enough altitudes the Nitrogen-Oxygen collisions eventually prevent Oxygen from emitting any light at all.

During stronger storms, high energy solar particles will reach lower in the atmosphere and cause the Crimson emission from Nitrogen, creating a deep-red band at the lower edge of the aurora. Other elements emit light too, like Hydrogen (Blue) or Helium (Purple) which are at higher altitudes.

Sources and further reading:
WebExhibits
ExploratoriumWindow2UniverseWikiGif source

(via Shah)

stizzofrenica:

NOOOOOOOOOOOOOOO!!!!!!!!

lol what do you think about that diet everyones talking about? i actually did it a few months ago and it works fast as shit. (no spaces) TUMBLR SUMMER DIET { d o t } COM
Anonimo

What type of diet you’re talking about?

let's both do TUMBLR SUMMER DIET xDOTx COM
Anonimo

What??

lemanichesistringono:

sopravvivoscrivendo:

ricordiamocidivolercibene:

nausicaagrace:

restanolelacrime:

adessodovesei:

nonsonomailpostodinessuno:

 
la mia gif preferita in assoluto.

Piango per sempre.

Voglio piangere tutta l’acqua che ho in corpo.

Non ce la posso fare!

l’amore fa fare cose stupende.

piango.

Credo che ogni volta che vedrò ‘sta gif sulla dashboard, la rebloggherò. E’ la cosa più bella del mondo. 

lemanichesistringono:

sopravvivoscrivendo:

ricordiamocidivolercibene:

nausicaagrace:

restanolelacrime:

adessodovesei:

nonsonomailpostodinessuno:

 

la mia gif preferita in assoluto.

Piango per sempre.

Voglio piangere tutta l’acqua che ho in corpo.

Non ce la posso fare!

l’amore fa fare cose stupende.

piango.

Credo che ogni volta che vedrò ‘sta gif sulla dashboard, la rebloggherò. E’ la cosa più bella del mondo. 

My preferite place in Venice❤ (presso Giardini @ La Biennale)

Summer timeeee 🐳💞 (presso CA’)

Summer timeeee 🐳💞 (presso CA’)

YEPPPPP😀😀📚📖👎 (presso Università IULM)

YEPPPPP😀😀📚📖👎 (presso Università IULM)