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+ - The Milky Way May be 50 Percent Bigger Than Thought-> 1

Submitted by astroengine
astroengine (1577233) writes "A ring-like filament of stars wrapping around the Milky Way may actually belong to the galaxy itself, rippling above and below the relatively flat galactic plane. If so, that would expand the size of the known galaxy by 50 percent and raise intriguing questions about what caused the waves of stars. Scientists used data collected by the Sloan Digital Sky Survey to reanalyze the brightness and distance of stars at the edge of the galaxy. They found that the fringe of the disk is puckered into ridges and grooves of stars, like corrugated cardboard. “It looks to me like maybe these patterns are following the spiral structure of the Milky Way, so they may be related,” astronomer Heidi Newberg, with Rensselaer Polytechnic Institute in New York, told Discovery News."
Link to Original Source

Comment: Re: 130 megawatts of energy (Score 1) 191

by bigwheel (#49029523) Attached to: Apple Invests $848 Million Into Solar Farm

Usually, PV power is rated at. Temp = 25 degrees C, and Insolation = 1000 watts/Meter**2. (peak sun and cool panels)

NREL maps provide the equivalent peak-sun hours per day for a given area. So, that is a reasonable number to work with for estimates.

But the temp rating is unrealistic for a black solar panel getting direct sunlight. As panels get hotter, their production decreases. So, some manufacturers also offer numbers for warmer temperatures.

+ - The fiddling with temperature data is the biggest science scandal ever-> 1

Submitted by schwit1
schwit1 (797399) writes "New data shows that the “vanishing” of polar ice is not the result of runaway global warming

When future generations look back on the global-warming scare of the past 30 years, nothing will shock them more than the extent to which the official temperature records – on which the entire panic ultimately rested – were systematically “adjusted” to show the Earth as having warmed much more than the actual data justified.

“How we are being tricked by flawed data on global warming”"

Link to Original Source

Comment: Re:I don't get it... (Score 1) 201

by bigwheel (#48982545) Attached to: Testosterone Increasingly Being Used To Fight Aging In Men

Devil's advocate here. Life expectancy has steadily increased despite all that bad stuff. Both in the US and worldwide

If you want to age gracefully and not take steps to repair age-related problems, then go for it.

I know that life is finite. But all things considered, I prefer to postpone death, and make the interim time as pleasant as possible. That's why I do things like exercise, eat properly, and go to the dentist. And if there is a fix to an age-related illness or problem, then I'm all for it. The hard part is figuring out what is real, and understanding the trade-offs.

Comment: Re:Just let them test out! (Score 1) 307

(GP here) This is what I was referring to. Several of my undergrad classes were graded on a curve, where only the top percentage of students receive "A"s. If it happens to be an easy class or there are a lot of top performers, then nit-picky things become enough to push your grade down to a B.

That said, I don't know if Intro to CS was one of those classes. It was only an assumption. So, criticism of my earlier statement might be called for.

Comment: Re:Just let them test out! (Score 2) 307

Same thing happened to me. (Long story as a cross-over from Physics.) As a CSci senior, they made me take the Intro class - even though I knew the material inside-out and was a tutor for the class. I volunteered to take every test in one sitting and write every programming assignment the same day. Instead, I got to sit through boring lectures and steal an A from some deserving student.

If you don't have time to do it right, where are you going to find the time to do it over?