Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×
NASA

Submission + - NASA: Asteroid did not kill the dinosaurs (sky.com)

Meshach writes: NASA is now saying that the dinosaurs were not killed by a giant asteroid. Turns out that the asteroid impact suspected to be the culprit hit the Earth 20 million years earlier then previously thought meaning that its consequences were long gone when the extinction took place. This news makes the ultimate reason behind the dinosaur's demise unknown.

Comment Re:and given that assumption is now questioned... (Score 1) 246

Depends on what is the purpose of what? If intelligent life is the rare and special thing and all that space is just the necessary byproduct you could also see it as making our lifes just the more special.
Not necessarily a depressing thought.

As much as I love the idea of living in a universe with many civilisations and crawling with life, it could ironically actually devalue the way people think of OUR world and our place in the universe.

In the end I think both outcomes can be mindboggling :)

Comment Re:and given that assumption is now questioned... (Score 1) 246

Isn`t it equally fascinating if we were in fact alone and not necessarily make a god or fate responsible?
If intelligent life was so common I always wonder why we didnt see any self replicating drones visiting us yet?
Think about how much time they had to and only one civilisation had to build them.

Fascinating either way...

Comment Re:Please explain (Score 1) 246

Some factors can be tested and calculated in a simulation. Example: We have a very large planet far out in our solar system that catches objects that could otherwise collide with earth, therefore changing the timespan between extinction level events upwards far enough for intelligent life / civilizations to develop. Check. How likely do solar systems have things of the size of Jupiter that far out?

But for the majority of factors it is pointless to argue from the cause towards the effect unless you understand how exactly intelligent life develops. We know how much time it roughly took and we know that only one species has made that leap yet.

On many other contributing factors you can only argue backwards from observing our existing world: Earth has an exceptionally large moon (relative to earths size) and it therefore makes sense to look at this factor as a possible contribution to our existence.

Making a simulation of a process that we dont understand is not science IMO.

Comment Re:and given that assumption is now questioned... (Score 3, Insightful) 246

I think you misunderstood. The uniqueness is not in the fact that it has a moon but in its extraordinary size (in relation to the planet size). That IS quite unique and it may be essential to life development. Or it may not... IMO its a strange approach to try to solve this question with a simulation. The outcome seems to depend on lots of factors whose influence on the development of intelligent life are just not known yet. Without knowing how intelligent life develops a simulation seems like just guesswork.

Comment Re:Seems just as safe as ever... (Score 1) 1148

I agree that it is a tough requirement for a plant to withstand an 8.8 earthquake, but it is ignorant to not expect such a quake in that region. If such a quake "only" hits every 200 years then it still means to 1:4 chance within the typical lifespan of one reactor. A tsunami in combination with a strong quake also is hardly surprising in a location like that. Also it is normal for such reactors to be in use for 40 or more years. If you call for new reactors they can only be financed if again they too will be used for at least 40 years. In summary: I now judge CURRENT nuclear reactors as less safe than I "hoped for" a few days ago.

Comment Hubble should be scientifically correct.... (Score 0) 114

If I want artistic freedom, I can watch video games or movies (where lots of hubble images end up anyway). So the more scientifically correct you can get, the better. Using non natural colors is OK, but even then it would be good if every movie / image would identify which colors are original and what is artistic freedom. I suspect a large number of people believe that many artistically colored images show normal spectrum images. -Bernd
Entertainment

Submission + - Want to feel old even if you're not? Read this. (skunkpost.com)

crimeandpunishment writes: Phones with cords? What are those? E-mail? It's way too slow. The annual Beloit College Mindset List is out....showing what pop culture and technology items are ancient history to incoming college students. 75 items are on this year's list. Dirty Harry, Beavis & Butthead, and the hot potato over Dan Quayle's spelling gaffe? All were big deals....but not to this year's college freshman class.
Idle

Drunk History Presents Nikola Tesla *NSFW* 91

Amazingly accurate for someone so plastered. I think all history should be taught at this level of intoxication.
Image

Space Exploration Needs Extraterrestrial Ethics 162

An anonymous reader writes "Professor Andy Miah notes there's already international government policies taking hold on outer space — and a need for new ethical guidelines. 'For instance, what obligations do we owe to the various life forms we send there, or those we might discover? Can we develop a more considerate approach to colonizing outer space than we were able to achieve for various sectors of Earth?' And what rights do astronauts have? 'Could our inevitable public surveillance of their behavior become too much of an infringement on their personal privacy?' But more importantly, professor Miah notes that 'the goods of space exploration far exceed the symbolic value,' pointing out that 'A vast amount of research and development derives from space exploration ... For example, the United Kingdom's 2007 Space Policy inquiry indicated that the creation of space products contributes two to three times their value in GDP.'"

Comment ghosts identified (Score 1) 3

News from the twilight zone... the ghosts are inside the bed sheets ;-) I have to correct myself here. After some more experiments I did indeed found a way to wake up the GHOSTS... And that is indeed by just shaking the blanket and then quickly making lots of images with a flashlight. Surprisingly it sometimes leads to exactly the same pattern. Thanks for the hint!

Comment Re:Probably dust (Score 1) 3

I would agree if it would only be the white ball, but it seems to have a circular very fine structure in its center. Also, a dust particle would have to be very close to the lens (less than a cm I would say) to be this big. How could an object that close be in focus enough to show such a clear shape and be lit by the flashlight (which is embedded in the case of the camera and about 2 cm away from the lens: http://images.pcworld.com/news/graphics/189780-sonytx7_slide.jpg Dont get me wrong. I sure don`t want to insist on a paranormal explanation here, but also don`t think the scientific explanation can be that simple. The image sensor is a backlit CMOS btw. http://www.alphamountworld.com/photography-news/sonys-back-illuminated-cmos-sensor I wonder if something rarely goes wrong at the surface level of the sensor (high energy particle impact?) could it create such large (many hundred pixel) effect? -Bernd

Submission + - Ghost orb or cybershot TX7 firmware bug? 3

zav42 writes: I need people with some common sense to help me disproof "ghost orbs" on a picture I have just taken with my newly aquired Sony Cybershot TX7 camera.
Googling this phenomenon only brings up lots of lunatics websites, but I want people of SCIENCE to help me out. So is /. the right place?

I was sitting in bed experimenting with my new DSC TX7 and this one image taken with a flashlight shows a very clear orb image. I am well aware of lens flares, and yes there is a very bright spot on this image (the reflection of the flash light on the TV screen), but the orb is way too structured and in the wrong place IMO. I could not repeat this result even after many attempts from the same location and with the same camera settings.

Since I don`t believe in ghosts, my favorite theory so far is that this is a firmware bug or a side effect of the "demo mode" that was active in the settings of the camera (Demo mode 1 for those who have the camera). You have to know that this camera has a number of quite advanced features. It can for example recognize faces to control the shutter the moment a person smiles. (To avoid sounding like a sony viral marketing person, I have to also point out that the UI of the touchscreen is awful.)

So if you feel fit to judge paranormal activities OR detect a firmware bug OR explain a very unusual lensflare, then please have a look at this image:
http://commons.wikimedia.org/wiki/File:Ghost_orb_or_lensflare_image.jpg

Obligatory oath: I swear I did not alter this image in any way. It comes right from the memory stick of the camera.

-Bernd

Slashdot Top Deals

Today is a good day for information-gathering. Read someone else's mail file.

Working...