This feels like the result of Moore's Law winding down. Intel used to differentiate based on transistors, computations, energy use, but now the best they seem to do in world where rates aren't skyrocketing is to say they make their chips / boards without using "blood minerals". Could also just be them responding to the pricing pressure that conflict and the dominance of certain countries like China has caused in the rare earth metals market. Don't buy those because they're bad (and they jack our costs)
In many ways, these equations are almost worse than useless. For years, the Drake Eq. gave everyone the impression there were 1 or 2 other planets in the whole universe that could support life, and reinforced the whole contingent for which space exploration is never a "cost effective" endeavor. Then we found out "oh, wait, all our guesses were wildly pessemistic." They get filled with extrapolated numbers about a place we've only begun to tip-toe into and then make dire predictions.
Some are also just wrong. For example, he uses 4.5 km/s delta-V but that doesn't even cover the maxima for Liquid Fuel Rockets (7 to 9 km/s). If you start to approach tech like Electrostatic or Hall Effect (Ion) Thrusters you get up into numbers more like 50-100 km/s, which would probably multiply his 10 number by a bit (most of the Oort Cloud becomes available over time).
There's just so much fuzziness here its hard to find the use in it.
Linked is the average tuition rise over the last five years for all 50 states. In most cases, the rise is 20-30%. In the extreme upper end, the rise is nearly 80% (I'm looking at you Arizona...). http://www.cbpp.org/images/cms/3-19-13sfp-f3.jpg This clearly outpaces cost of living growth over the last five years.
The next link is the growth in administrative costs for one example, the University of California system, which has massively ballooned over the last several decades. http://californiareview.net/2011/08/24/graph-of-uc-administrative-growth/ This is not an isolated phenomenon. While professor salaries and direct education expenses have stayed relatively flat over the last few decades (or tracked inflation in some cases), the number of, and salaries provided to, administrative positions have dramatically increased across the board at most institutions (public or private).
For further example, look at total compensation for the top university executives across the US from 2011-2012. We are compensating many university execs in excess of $500,000 a year (some over $2 mil). http://old.post-gazette.com/images5/20130513presidential_pay691.png At many state schools, with limited external funding, and tuition rise limited by law, we're still paying execs $3-400,000. What value do these people add that is worth $300,000 - $2 million?
They should have been. When I was in college I rarely took notes, because taking notes is also distracting.
Similar. I generally preferred classes where they provided a notes handout at the end of the class (for those who attend) and just had people listen and interact. For those that didn't, I normally brought my recorder and would just transcribe later (digital or by hand) so that I could just relax, listen, and participate while I was there.
Quite a lot of our techniques for refining metals require vast quantities of water and oxygen, and gravity.
Then why aren't we developing refining systems that don't? The answer's in the title. If ever there was a space tech development that would pay off on Earth.
Link to Original Source
Link to Original Source
Link to Original Source
You don't need internet to survive, not going to argue. However, in the modern world, to be a competetive, contributing member of society, you do need internet to be on a leveled field of competetition. Most services are transitioning to a model where it is far easier and far less costly to you to gain their benefit with internet access.
For example, other utilities.
I pay my water, sewer, electricity, and gas over the internet. I don't have to, but it vastly reduces the opportunity cost in time to me. However, people without internet are not given this choice. They Must stand in line for upwards of an hour in under-staffed cattle corals to hand someone a $50 check. That is an hour they had to take off work or that they could have been spending on themselves. Multiply that by the array of gov't services which are moving to primarily internet based access, and the opportunity cost to individuals without internet is vast. And this doesn't even touch those services which are nearly, or utterly, inaccessible without internet. Those are simply lost.
The internet is a common good, like roads, which is not necessary for survival, but which should be a universal benefit to all of society
God help you if you try to buy it for home. When you find one movie out of the lot, where the experience was good, or you liked the plot... You bring it home, and every time you want to watch, you're forced to sit through 15 minutes of unskippable ads. W.T.F.?
Is it a wonder everyone pirates?