Science Science is Cool.... - Page 42

Fish · 11:19 PM

This is a repository for all cool scientific discussion and fascination. Scientific facts, theories, and overall cool scientific stuff that you'd like to share with others. Stuff that makes you smile and wonder at the amazing shit going on around us, that most people don't notice.

Post pictures, vidoes, stories, or links. Ask questions. Share science.

Why should I care?:

BroncoDork · 02-24-2013, 06:14 PM

Go to hubblesite.org/printshop or astrosociety.org to get prints from the Hubble.

I guess I'm too Noob to put URL links on this board.

Mugalug · 02-25-2013, 09:45 AM

Quote:

Originally Posted by ChiefsNow

This repeat of a video on autoplay sucks shit.

I just edited my previous post to remove the quote with the autoplay. I hope that helps.

**sd4chiefs** · 02-26-2013, 10:46 PM

Cosmic Fuggedaboudit: Dark Matter May Not Exist At All

http://science.time.com/2013/02/26/c...all/?hpt=hp_c2

When the idea of dark matter first pushed its way into astronomers’ consciousness a few decades ago, the primary reaction was: “Seriously? There’s a mysterious, invisible substance out there, with a mass six or more times greater than that of the visible stars and galaxies, only we have no way of detecting it, but really, it’s there? OK then.” Or something like that, albeit in more formal scientific language.

These days, dark matter is a firmly established principle of cosmology; most of the questions now focus on how the stuff is distributed through the universe, and which of many possible subatomic particles it’s made of.

Most of the questions, but not all. Ever since the early 80’s, a competing theory has been struggling for acceptance. Known as MOND, for Modified Newtonian Dynamics, it posits that dark matter’s main effect — allowing galaxies to spin faster than they should — isn’t caused by extra stuff, but instead by a change in how gravity works under certain conditions

Click on link if you really give a sh*t

**Dave Lane** · 02-27-2013, 09:09 AM

Fish · 03-01-2013, 01:30 PM

We've all been there....

What Happens To Your Brain When You Get Black-Out Drunk?
Jon Jackson

You wake up in an unfamiliar room, missing a button or two, with a few stains on your shirt that you're hoping are food-related. The last thing you remember from the night before was downing that fourth shot of Cuervo. Okay, so you blacked out. But what exactly does that mean?

What did alcohol do to my brain?
Anyone with a strong familiarity with booze has either had a blackout themselves, or knows someone who has. But not all blackouts are created equal; there are two types, "en bloc" and "fragmentary." As their names imply, fragmentary blackouts cause the drinker to not recall moments for small periods of time, whereas en bloc refers to larger periods.

People who experience fragmentary blackouts, sometimes referred to as "brownouts," can typically recall forgotten events once they're reminded of them. En bloc blackouts aren't so lucky. But both types are believed to be caused by the same thing, namely a neurophysiological, chemical disruption in the brain's hippocampus, a region integral to memory formation.

Alcohol interferes with the receptors in the hippocampus that transmit glutamate, a compound that carries signals between neurons. During this interference, alcohol prevents some receptors from working, while activating others. This process causes the neurons to create steroids that then prevent neurons from communicating with each other properly, thus disrupting long-term potentiation (LTP), a process believed necessary for learning and memory.

In simpler terms, the effect is similar to anterograde amnesia in that the brain temporarily loses the ability to create new memories. Blackout sufferers still may be able to partake in spirited discussions or send late-night emails to former employers. What they won't be able to do is create memories of any of it. And of course, there's a dark side to all this. Blackouts tend to indicate a high level of intoxication, during which time drinkers don't exhibit their best judgment, raising the risk of dangerous behavior such as having unprotected sex or driving a car.

Can blackouts be avoided?
As is the case with many drinking-related woes, having a full stomach helps. Not eating will cause your blood alcohol level to elevate more quickly. Drinking less and slower also obviously helps. Studies show a blackout's main culprit to be a fast, dramatic spike in blood alcohol content; they usually kick in at blood alcohol levels of at least 0.15 percent. That's roughly twice the legal limit for driving. And the trouble really begins when this level is reached quickly.

Women may have a harder time avoiding blackouts since their blood alcohol content increases more quickly than men's. Not only do they tend to have less water in their bodies to disperse the alcohol, but they also have less gastric dehyrogenase, an enzyme that breaks down alcohol.

There also appears to be a tendency for people to revert back to blackout states once they start experiencing them, so you probably should lay off the sauce for a while after blacking out. But basically the way to avoid a blackout is either to not drink quite so much, or to at least drink it slower.

Does blacking out mean I'm an alcoholic?
Addiction expert E. M. Jellinek, who started the first significant research on blackouts in the 1940s, believed blacking out was a sure sign of dependency. More recent studies tend to indicate this isn't always the case, as social binge drinkers—hey there, frat guys—are just as likely to experience blackouts as people who drink heavily on a daily basis. Basically, it all comes down to that sudden spike in blood alcohol content, though evidence suggests some people may have a genetic predisposition to blacking out.

Either way, frequent blackouts should not be taken lightly. Aside from engaging in questionable behavior that you'd likely regret if you could remember, any time you alter your basic brain function in such a significant way leaves you open to long-term damage. basic functions in the brain are significantly altered could represent long-term damage.

Fish · 03-01-2013, 03:57 PM

Science perks....

**hometeam** · 03-01-2013, 07:50 PM

NDGT asking Neil Armstrong what it was like on the moon~

****in love this man.

Fish · 03-02-2013, 02:13 AM

dmahurin · 03-02-2013, 04:13 AM

Quote:

Originally Posted by Dave Lane

listo I love the astro anarchy guy. He rocks, I love how he does the 3D stuff.

He's my pictures of the Lagoon and Heart Nebula along with the Pacman Nebula. Especially in the Pacman Nebula in the center, some cool views.

Links added so it doesn't kill thread

Warning large pics

http://re-prop.com/apod/Heart_Nebula.jpg

http://re-prop.com/apod/pacman.jpg

http://re-prop.com/apod/m8-lagoon.jpg

My kids are wanting to get a telescope to play around with and I'm looking for something cheap to start out with that's not overly powerful, just enough to check out the moon. Do you have any suggestions on what I should be looking for that would be good for kids 7 and 9 years old?

**Dave Lane** · 03-02-2013, 10:57 AM

Quote:

Originally Posted by dmahurin

My kids are wanting to get a telescope to play around with and I'm looking for something cheap to start out with that's not overly powerful, just enough to check out the moon. Do you have any suggestions on what I should be looking for that would be good for kids 7 and 9 years old?

Sent you a PM also if that doesn't sound like something you want to try let me know and I'll find something that would be decent on craigslist or Ebay for you.

**Dave Lane** · 03-06-2013, 05:11 PM

Explanation: Is this an alien? Probably not, but of all the animals on Earth, the tardigrade might be the best candidate. That's because tardigrades are known to be able to go for decades without food or water, to survive temperatures from near absolute zero to well above the boiling point of water, to survive pressures from near zero to well above that on ocean floors, and to survive direct exposure to dangerous radiations. The far-ranging survivability of these extremophiles was tested in 2011 outside an orbiting space shuttle. Tardigrades are so durable partly because they can repair their own DNA and reduce their body water content to a few percent. Some of these miniature water-bears almost became extraterrestrials recently when they were launched toward to the Martian moon Phobos on board the Russian mission Fobos-Grunt, but stayed terrestrial when a rocket failed and the capsule remained in Earth orbit. Tardigrades are more common than humans across most of the Earth. Pictured above in a color-enhanced electron micrograph, a millimeter-long tardigrade crawls on moss.

Fish · 03-06-2013, 06:15 PM

Duuuuuude.. You gotta watch this.....

Fish · 03-06-2013, 10:32 PM

Perspective....

listopencil · 03-07-2013, 12:46 AM

Tartigrade>Honey Badger

**chefsos** · 03-07-2013, 12:51 AM

Quote:

Originally Posted by listopencil

Tartigrade>Honey Badger

Badass, to be sure. But is it badder than a shaved bear?

05-21-2012, 09:43 PM
Fish Ain't no relax! Join Date: Sep 2005 Casino cash: $298919	Science is Cool.... This is a repository for all cool scientific discussion and fascination. Scientific facts, theories, and overall cool scientific stuff that you'd like to share with others. Stuff that makes you smile and wonder at the amazing shit going on around us, that most people don't notice. Post pictures, vidoes, stories, or links. Ask questions. Share science. Why should I care?: Last edited by Fish; 05-05-2021 at 11:19 PM..
Posts: 48,450

02-24-2013, 06:14 PM	#616
BroncoDork Starter Join Date: Jan 2013 Location: Littleton, CO Casino cash: $10004965	Go to hubblesite.org/printshop or astrosociety.org to get prints from the Hubble. I guess I'm too Noob to put URL links on this board.
Posts: 248

02-26-2013, 10:46 PM	#618
sd4chiefs error 404 Join Date: Aug 2000 Location: Bizarro World Casino cash: $8750445	Cosmic Fuggedaboudit: Dark Matter May Not Exist At All http://science.time.com/2013/02/26/c...all/?hpt=hp_c2 When the idea of dark matter first pushed its way into astronomers’ consciousness a few decades ago, the primary reaction was: “Seriously? There’s a mysterious, invisible substance out there, with a mass six or more times greater than that of the visible stars and galaxies, only we have no way of detecting it, but really, it’s there? OK then.” Or something like that, albeit in more formal scientific language. These days, dark matter is a firmly established principle of cosmology; most of the questions now focus on how the stuff is distributed through the universe, and which of many possible subatomic particles it’s made of. Most of the questions, but not all. Ever since the early 80’s, a competing theory has been struggling for acceptance. Known as MOND, for Modified Newtonian Dynamics, it posits that dark matter’s main effect — allowing galaxies to spin faster than they should — isn’t caused by extra stuff, but instead by a change in how gravity works under certain conditions Click on link if you really give a sht Last edited by sd4chiefs; 02-26-2013 at 10:51 PM..*
Posts: 3,990

02-27-2013, 09:09 AM	#619
Dave Lane Space Cadet and Aczabel Join Date: Aug 2000 Location: Kanab, UT, USA Casino cash: $9333275 VARSITY	__________________ Thanks, Trump for the civics lesson. We are learning so much about RICO, espionage, sedition, impeachment, the 25th Amendment, order of succession, nepotism, separation of powers, 1st Amendment, obstruction of justice, the emoluments clause, conflicts of interest, collusion, sanctions, oligarchs, money laundering and so much more.
Posts: 40,584

03-01-2013, 01:30 PM	#620
Fish Ain't no relax! Join Date: Sep 2005 Casino cash: $298919	We've all been there.... What Happens To Your Brain When You Get Black-Out Drunk? Jon Jackson You wake up in an unfamiliar room, missing a button or two, with a few stains on your shirt that you're hoping are food-related. The last thing you remember from the night before was downing that fourth shot of Cuervo. Okay, so you blacked out. But what exactly does that mean? What did alcohol do to my brain? Anyone with a strong familiarity with booze has either had a blackout themselves, or knows someone who has. But not all blackouts are created equal; there are two types, "en bloc" and "fragmentary." As their names imply, fragmentary blackouts cause the drinker to not recall moments for small periods of time, whereas en bloc refers to larger periods. People who experience fragmentary blackouts, sometimes referred to as "brownouts," can typically recall forgotten events once they're reminded of them. En bloc blackouts aren't so lucky. But both types are believed to be caused by the same thing, namely a neurophysiological, chemical disruption in the brain's hippocampus, a region integral to memory formation. Alcohol interferes with the receptors in the hippocampus that transmit glutamate, a compound that carries signals between neurons. During this interference, alcohol prevents some receptors from working, while activating others. This process causes the neurons to create steroids that then prevent neurons from communicating with each other properly, thus disrupting long-term potentiation (LTP), a process believed necessary for learning and memory. In simpler terms, the effect is similar to anterograde amnesia in that the brain temporarily loses the ability to create new memories. Blackout sufferers still may be able to partake in spirited discussions or send late-night emails to former employers. What they won't be able to do is create memories of any of it. And of course, there's a dark side to all this. Blackouts tend to indicate a high level of intoxication, during which time drinkers don't exhibit their best judgment, raising the risk of dangerous behavior such as having unprotected sex or driving a car. Can blackouts be avoided? As is the case with many drinking-related woes, having a full stomach helps. Not eating will cause your blood alcohol level to elevate more quickly. Drinking less and slower also obviously helps. Studies show a blackout's main culprit to be a fast, dramatic spike in blood alcohol content; they usually kick in at blood alcohol levels of at least 0.15 percent. That's roughly twice the legal limit for driving. And the trouble really begins when this level is reached quickly. Women may have a harder time avoiding blackouts since their blood alcohol content increases more quickly than men's. Not only do they tend to have less water in their bodies to disperse the alcohol, but they also have less gastric dehyrogenase, an enzyme that breaks down alcohol. There also appears to be a tendency for people to revert back to blackout states once they start experiencing them, so you probably should lay off the sauce for a while after blacking out. But basically the way to avoid a blackout is either to not drink quite so much, or to at least drink it slower. Does blacking out mean I'm an alcoholic? Addiction expert E. M. Jellinek, who started the first significant research on blackouts in the 1940s, believed blacking out was a sure sign of dependency. More recent studies tend to indicate this isn't always the case, as social binge drinkers—hey there, frat guys—are just as likely to experience blackouts as people who drink heavily on a daily basis. Basically, it all comes down to that sudden spike in blood alcohol content, though evidence suggests some people may have a genetic predisposition to blacking out. Either way, frequent blackouts should not be taken lightly. Aside from engaging in questionable behavior that you'd likely regret if you could remember, any time you alter your basic brain function in such a significant way leaves you open to long-term damage. basic functions in the brain are significantly altered could represent long-term damage. __________________
Posts: 48,450

03-01-2013, 03:57 PM	#621
Fish Ain't no relax! Join Date: Sep 2005 Casino cash: $298919	Science perks.... __________________
Posts: 48,450

03-01-2013, 07:50 PM	#622
hometeam Supporter Join Date: Jul 2011 Casino cash: $2821956	NDGT asking Neil Armstrong what it was like on the moon~ ****in love this man.
Posts: 10,695

03-02-2013, 02:13 AM	#623
Fish Ain't no relax! Join Date: Sep 2005 Casino cash: $298919	__________________
Posts: 48,450

03-06-2013, 05:11 PM	#626
Dave Lane Space Cadet and Aczabel Join Date: Aug 2000 Location: Kanab, UT, USA Casino cash: $9333275 VARSITY	Explanation: Is this an alien? Probably not, but of all the animals on Earth, the tardigrade might be the best candidate. That's because tardigrades are known to be able to go for decades without food or water, to survive temperatures from near absolute zero to well above the boiling point of water, to survive pressures from near zero to well above that on ocean floors, and to survive direct exposure to dangerous radiations. The far-ranging survivability of these extremophiles was tested in 2011 outside an orbiting space shuttle. Tardigrades are so durable partly because they can repair their own DNA and reduce their body water content to a few percent. Some of these miniature water-bears almost became extraterrestrials recently when they were launched toward to the Martian moon Phobos on board the Russian mission Fobos-Grunt, but stayed terrestrial when a rocket failed and the capsule remained in Earth orbit. Tardigrades are more common than humans across most of the Earth. Pictured above in a color-enhanced electron micrograph, a millimeter-long tardigrade crawls on moss. __________________ Thanks, Trump for the civics lesson. We are learning so much about RICO, espionage, sedition, impeachment, the 25th Amendment, order of succession, nepotism, separation of powers, 1st Amendment, obstruction of justice, the emoluments clause, conflicts of interest, collusion, sanctions, oligarchs, money laundering and so much more.
Posts: 40,584

03-06-2013, 06:15 PM	#627
Fish Ain't no relax! Join Date: Sep 2005 Casino cash: $298919	Duuuuuude.. You gotta watch this..... __________________
Posts: 48,450

03-06-2013, 10:32 PM	#628
Fish Ain't no relax! Join Date: Sep 2005 Casino cash: $298919	Perspective.... __________________
Posts: 48,450

03-07-2013, 12:46 AM	#629
listopencil Immanentize The Eschaton Join Date: Oct 2002 Location: In Partibus Infidelium Casino cash: $635880	Tartigrade>Honey Badger __________________ *While you live, shine. Have no grief at all. Life exists only for a short while and time demands its toll.*
Posts: 56,264