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So we fix our eyes not on what is seen, but on what is unseen, since what is seen is temporary, but what is unseen is eternal.


The Profile


Zanzibar
Age. 39
Gender. Female
Ethnicity. that of my father and his father before him
Location Altadena, CA
School. Other
» More info.
The World









The Link To Zanzibar's Past
This is my page in the beloved art community that my sister got me into:

Samarinda

Extra points for people who know what Samarinda is.
The Phases of the Moon Module
CURRENT MOON
Croc Hunter/Combat Wombat
My hero(s)
Only My Favorite Baseball Player EVER


Aw, Larry Walker, how I loved thee.
The Schedule
M: Science and Exploration
T: Cook a nice dinner
W: PARKOUR!
Th: Parties, movies, dinners
F: Picnics, the Louvre
S: Read books, go for walks, PARKOUR
Su: Philosophy, Religion
The Reading List
This list starts Summer 2006
A Crocodile on the Sandbank
Looking Backwards
Wild Swans
Exodus
1984
Tales of the Alhambra (in progress)
Dark Lord of Derkholm
Do Androids Dream of Electric Sheep?
The Lost Years of Merlin
Harry Potter a l'ecole des sorciers (in progress)
Atlas Shrugged (in progress)
Uglies
Pretties
Specials
A Long Way Gone (story of a boy soldier in Sierra Leone- met the author! w00t!)
The Eye of the World: Book One of the Wheel of Time
From Magma to Tephra (in progress)
Lady Chatterley's Lover
Harry Potter 7
The No. 1 Lady's Detective Agency
Introduction to Planetary Volcanism
A Child Called "It"
Pompeii
Is Multi-Culturalism Bad for Women?
Americans in Southeast Asia: Roots of Commitment (in progress)
What's So Great About Christianity?
Aeolian Geomorphology
Aeolian Dust and Dust Deposits
The City of Ember
The People of Sparks
Cube Route
When I was in Cuba, I was a German Shepard
Bound
The Golden Compass
Clan of the Cave Bear
The 9/11 Commission Report (2nd time through, graphic novel format this time, ip)
The Incredible Shrinking Man
Twilight
Eclipse
New Moon
Breaking Dawn
Armageddon's Children
The Elves of Cintra
The Gypsy Morph
Animorphs #23: The Pretender
Animorphs #25: The Extreme
Animorphs #26: The Attack
Crucial Conversations
A Journey to the Center of the Earth
A Great and Terrible Beauty
The Absolutely True Diary of a Part-Time Indian
Dandelion Wine
To Sir, With Love
London Calling
Watership Down
The Invisible
Alice in Wonderland
Through the Looking Glass
20,000 Leagues Under the Sea
The Host
The Hunger Games
Catching Fire
Shadows and Strongholds
The Jungle Book
Beatrice and Virgil
Infidel
Neuromancer
The Help
Flip
Zion Andrews
The Unit
Princess
Quantum Brain
The Immortal Life of Henrietta Lacks
No One Ever Told Us We Were Defeated
Delirium
Memento Nora
Robopocalypse
The Name of the Wind
The Terror
Sister
Tao Te Ching
What Paul Meant
Lao Tzu and Taoism
Libyan Sands
Sand and Sandstones
Lost Christianites: The Battles for Scripture and the Faiths We Never Knew
The Science of God
Calculating God
Great Contemporaries, by Winston Churchill
City of Bones
Around the World in 80 Days, by Jules Verne
Divergent
Stranger in a Strange Land
The Old Man and the Sea
Flowers for Algernon
Au Bonheur des Ogres
The Martian
The Road to Serfdom
De La Terre � la Lune (ip)
In the Light of What We Know
Devil in the White City
2312
The First Fifteen Lives of Harry August
Red Mars
How to Be a Good Wife
A Mote in God's Eye
A Gentleman in Russia
The Fatal Conceit: The Errors of Socialism
Seneca: Letters from a Stoic
The Juanes Module


Juanes just needed his own mod. Who can disagree.
Lightning and Gamma Ray Bursts
Wednesday. 7.21.10 9:14 pm
Have you heard of gamma-ray bursts?

They're a mysterious phenomenon where a burst of extremely high energy photons (gamma rays) emerge from a point in space. Nobody knows why, but it is hypothesized that gamma ray bursts occur with the collapse of a high mass star into a black hole. Most occur in distant galaxies and last for several seconds.

In the 90s a telescope was chillin' out in space looking for gamma ray bursts when it detected one nearby. Where was the gamma ray burst coming from?

THE EARTH.

In the subsequent years it was discovered that terrestrial gamma ray flashes occur in the Earth's atmosphere associated with lightning storms, at a rate of about 50 per day. Lightning itself is still a relatively mysterious phenomenon, as it is difficult to see how the relatively low electric fields in thunderstorms give rise to a bolt of such incredible magnitude, and how this electrical channel propagates through air, which is generally a pretty bad conductor.

There was a hypothesis that showers of cosmic particles initiated lightning, since that would be a way to give it enough energy to begin, but it seemed as if lightning was much more common than these showers of cosmic particles, and that the cosmic particle showers alone were still insufficient to initiate lightning. The discovery of terrestrial gamma ray bursts has further complicated the issue, as thunder clouds are certainly not distant exploding stars, and making gamma rays requires a great deal of energy to be released (gamma rays are so high in frequency that their wavelenths are about the radius of an atom). Perhaps terrestrial gamma ray bursts could provide the energy needed for lightning, but then why does there appear to be many, many times as much lightning as there are bursts?

On the other hand, could whatever extremely high energy event that forms lightning also be powerful enough at times to create the gamma ray bursts?

Researchers have flown lightning planes through thunderstorms in order to study lightning, and storm chasers chase storms across Florida and Colorado (the two top-ranked states for lightning deaths) hoping their vehicles will get struck by lightning, or that the lightning will come close enough for their instruments to be analyzed. Researchers at the University of Florida, in cooperation with Florida Tech, have created an outdoor lightning lab, where instead of chasing lightning, they bring it to their instruments. There they have a rocket launcher which launches rockets into storm clouds. The rocket is attached to a coil of copper wire. As the rocket travels into the cloud, it attracts lightning. The lightning travels down the length of the copper wire, effectively vaporizing it into a glowing green gas as at it makes its way to the instuments.

By directing the lightning, the scientists can capture it with a high-frame rate camera, as well as photographing it with spectrometers and measuring the electrical and magnetic fields.

Lightning is an incredibly common phenomenon which is still not very well understood. It is perhaps ironic that we had to build a telescope to study events in distant galaxies in order to discover a fundamental clue to a process that was so close to home.

Moral: Lightning is wicked-cool.
Recommended by 4 Members
middaymoon Midnight jinyu fakebil
15 Comments.


Lightning is whicked-cool! I didn't know that there is such things as a gamma-ray burst and they look pretty!
» Nuttz on 2010-07-22 01:21:16

Gamma from lightning? Don't tell the public, haha.
» middaymoon on 2010-07-22 10:08:11

Whoops just read your comment
I'm headed to Georgia Tech! Good times ahoy
» middaymoon on 2010-07-22 10:13:02

Yeah for real it was
I guess that means you liked my entry! whee!

I was pretty stoked when I read that I can buy an $800+ program for a little under $200. I don't think that includes dreamweaver, though. And I don't think you need it for simple stuff like nuTang.
» middaymoon on 2010-07-22 10:12:57

Very interesting
Who woulda thunk. Ya gotta love it!
» Midnight on 2010-07-25 04:39:38

Lol, I like the moral.
» jinyu on 2010-07-26 09:41:14

I was exposed to some Gamma radiation
on the way back from Atlanta yesterday! Whoo!

Question: You said that I could potentially intern or something at NASA. Do they ask for Physics majors?
» middaymoon on 2010-07-27 12:10:00

I have another mystery....the fact that your sciency posts are always way more awesome to read than the stuff I tried to learn in school
» The-Muffin-Man on 2010-07-28 03:15:37

My friend once had a stomach ache that culminated in a burst of gamma rays from his butt.
» dave on 2010-07-28 04:18:07

Wow, thanks!
I'll try to keep these in mind. I especially appreciate the projects!
» middaymoon on 2010-07-28 01:04:51

*hug*
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