And such...
Itt, we post moments of happiness.
That is all.
driving back home in the AM hours (morning after a good nights rest, not drunk late night hours)-the weather-just perfect , a cool breeze not too hot nor cold, just perfect...windows rolled down...the song that just makes you wanna smile and move comes on the car radio, you crank it and just lose yourself in the moment.
First bite off a good home made biscuit.
Yes, I am fucking crazy for good biscuits. Craving the hell out of some atm. lol
Today, when I calculated the velocity of another galaxy based on the amount of redshift in hydrogen absorption lines of a cepheid variable star, with which I used Hubbles constant to calculate it's approximate distance, in Mega light-years, from our own galaxy. Without help, or notes.
It's easy, watch.
First, you need to use the following equation to determine the deviation of the absobtion lines towards the red end of the spectrum (a unit-less number we'll call "Z"):
Z=Wo-Wr/Wr
(Where "W" is used instead of the traditional lamda, mainly because I don't have a lamda key on my keyboard. Subscript "o" is the observed wavelength of the moving star, and subscript "r" is the rest wavelength of hydrogen, in nano-meters)
The rest wavelength of hydrogen is 656.3 nm, and we'll call our observed wavelength, for the sake of this example, 659.6 nm. So, we'll start by plugging these numbers into the above formula, and we'll get:
Z=659.6nm-656.3nm/656.3nm
So, after a quick dimensional analisys, we'll see our units cancel, and we can crunch the numbers to get:
Z=.005
Now that we've figured the amount of redshift of the spectral lines, we can use this number to determine the stars velocity with the following setup:
V=CxZ
"Z" is our amount of redshift which we just determined, and "C" is a constant we should all recognize as the speed of light, 3x10^8 m/s. However, to use this number with Hubble's constant it must be first converted to km, which we do by dividing it by 1000, which should get us 3x10^5 km/s. So, we plug these numbers in, and solve for V.
V=(3x10^5 km/s)(.005)
V=1500 km/s
Our units can stay as km/s, as Z has no units, and we see our cepheid variable star is moving at about fifteen hundered kilometers a second. We're almost there. To determine the approximate distance to said cepheid variable, we simply divide the velocity by Hubble's constant, 22 km/s/MLy, to get the rough distance:
d=V/Ho
or, in our case:
d=1500km/s / 22km/s/Mly
And we get our answer of 68.18 Mega-Light years from us. One mega light year is equal to a million light years, so we can multiply our answer by a million to determine the distance in light years, which is just about 68.2x10^5 light years.
That's awesome, Dimo. :)
Quote from: Jenkem and Tomahawks on May 06, 2011, 05:36:03 AM
That's awesome, Dimo. :)
It's really neat for me, because up untill about a month ago, I had severe doubts about my capacity to complete and understand more complex mathematics. Actually, doing it is enthralling. Not many "old dogs" can learn such cool new tricks.
An aside: "Redshift" would be an awesome band name.
ice cream
Quote from: Thurnez Isa on May 06, 2011, 05:49:58 AM
ice cream
But not just any ice cream--the kind that just when placed in mouth-creams to perfection.l...
ahhh
nice-so nice....
Also-Slept time dreams---not nightmare but kick ass dreams vivid with color, feeling and shit-ah hell-----feeling. period. just feeling.
;;))
Quote from: Cuddlefish on May 06, 2011, 05:42:16 AM
Quote from: Jenkem and Tomahawks on May 06, 2011, 05:36:03 AM
That's awesome, Dimo. :)
It's really neat for me, because up untill about a month ago, I had severe doubts about my capacity to complete and understand more complex mathematics. Actually, doing it is enthralling. Not many "old dogs" can learn such cool new tricks.
An aside: "Redshift" would be an awesome band name.
You are a lot smarter than you think you are. This is so much better than the other way around.
I just signed up for my fall classes. I suppose that made me less hating. So is good thing.
Quote from: Jenkem and Tomahawks on May 06, 2011, 08:05:52 AM
I just signed up for my fall classes. I suppose that made me less hating. So is good thing.
YAYYYYY!!!!!!
Chocolate and Banana Beer-shake, thanks to a recipe from Suu (my local booze store finally stocked the necessary ingredients)
Quote from: Cuddlefish on May 06, 2011, 05:42:16 AM
Quote from: Jenkem and Tomahawks on May 06, 2011, 05:36:03 AM
That's awesome, Dimo. :)
It's really neat for me, because up untill about a month ago, I had severe doubts about my capacity to complete and understand more complex mathematics. Actually, doing it is enthralling. Not many "old dogs" can learn such cool new tricks.
An aside: "Redshift" would be an awesome band name.
One fine early morning day, you should go into the astronomy department computer lab, and paint the shift keys on their keyboards. One blue, one red.
Observe how they, one-by-one, figure it out.
Quote from: Rumckle on May 06, 2011, 09:29:23 AM
Chocolate and Banana Beer-shake, thanks to a recipe from Suu (my local booze store finally stocked the necessary ingredients)
Well's Banana Bread and Young's Double Chocolate?
I'm telling you, it's a life-changing experience.
I haven't been totally self-loathing as of late. In fact, I've been the happiest I've been in a while. Maybe its the end of the semester, maybe it's me starting to get back on track with work, maybe it's because I'm hitting it off with a great guy I like a lot...I don't know. Suddenly summer doesn't seem so bleak and fruitless for me as it's been lately.
Quote from: Suu the Infallible on May 06, 2011, 01:03:28 PM
Quote from: Rumckle on May 06, 2011, 09:29:23 AM
Chocolate and Banana Beer-shake, thanks to a recipe from Suu (my local booze store finally stocked the necessary ingredients)
Well's Banana Bread and Young's Double Chocolate?
I'm telling you, it's a life-changing experience.
Yeah, also with Ice cream and Banana added, it was pretty damn awesome, like a banana smoothie, except alcoholic
I did black and tans with them for Moosemas. *drool*
A reconciliation.
Handed over my work keys to the job I quit today. Felt great to be rid of them.
A container of Haagan Dazs Pineapple Coconut ice cream, no pance, and a long, bright scarf.
........and Vicodin. Hi!
Quote from: Eve Hill on May 08, 2011, 06:25:08 AM
A container of Haagan Dazs Pineapple Coconut ice cream, no pance, and a long, bright scarf.
........and Vicodin. Hi!
That sounds like a plan for Monday!
Quote from: Nigel on May 08, 2011, 06:29:49 AM
Quote from: Eve Hill on May 08, 2011, 06:25:08 AM
A container of Haagan Dazs Pineapple Coconut ice cream, no pance, and a long, bright scarf.
........and Vicodin. Hi!
That sounds like a plan for Monday!
I have enough ice cream and pills to last through the next couple Mondays. Want some? :lulz: What I really want is a hamburger from Culvers! With bacon & cheese on it. (Fucking oral surgeons and their teeth thievery!)
Living in a geek commune. I had one brilliant moment just now when I realized all the people in the house unadulterated geeks and proud of it (including the kids). It was a warm fuzzy, holy crap we're weird moment.
Example: The four year old uses the word googleplex in context, even if he doesn't quite "get" the mathematics of it.
My honeysuckle is blooming, and it sits right outside my window. Currently, due to my cold, I can barely smell it but it's been lingering for a couple weeks. It makes me happy.
Quote from: Suu the Infallible on May 06, 2011, 01:27:56 PM
I haven't been totally self-loathing as of late. In fact, I've been the happiest I've been in a while. Maybe its the end of the semester, maybe it's me starting to get back on track with work, maybe it's because I'm hitting it off with a great guy I like a lot...I don't know. Suddenly summer doesn't seem so bleak and fruitless for me as it's been lately.
Good. :)
New content in the Nessie thread.
:)
Beautiful weather, like 26 degrees C, very comfortable, and I'm sitting on my balcony with the laptop and a cold drink :D
Quote from: Triple Zero on May 08, 2011, 01:41:40 PM
Beautiful weather, like 26 degrees C, very comfortable, and I'm sitting on my balcony with the laptop and a cold drink :D
That's, what, 80 miles, right?
Quote from: Jenkem and Tomahawks on May 13, 2011, 05:23:24 AM
Quote from: Triple Zero on May 08, 2011, 01:41:40 PM
Beautiful weather, like 26 degrees C, very comfortable, and I'm sitting on my balcony with the laptop and a cold drink :D
That's, what, 80 miles, right?
:lulz:
Quote from: Jenkem and Tomahawks on May 13, 2011, 05:23:24 AM
Quote from: Triple Zero on May 08, 2011, 01:41:40 PM
Beautiful weather, like 26 degrees C, very comfortable, and I'm sitting on my balcony with the laptop and a cold drink :D
That's, what, 80 miles, right?
No, C stands for the speed of sound, dummy.