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Comment Re:Price won't come down (Score 2) 317

So I'm looking at the lithium price and I see that for $64M I can make a plant/mine which will give me $8M/year profit, and ROI of 12.5%. This looks pretty good. Then I consider than some bright spark might come up with an aluminium based battery technology which would make lithium ion batteries obsolete and could be in production 4 years from now. If this were to happen, in four years I've made back just $32M and now have a worthless mine. Therefore I decide not to invest in lithium production until I can get ROI of 20% because of the risk.

It seems to me that lithium is bound to be either overproduced (if new technology comes along) or underproduced (if new technology does not, but investors are wary of building facilities for fear it might.)

Comment He was also the second Governor of New Zealand (Score 4, Interesting) 33

He quickly became very unpopular with settlers due to trying to be fair to the Maori. In one notable occasion some colonists invaded Maori land in an attempt to seize it and got massacred. (They were a poorly armed militia and on the other side was Te Rauparaha, who was so scary that to this day his haka is used by the All Blacks to intimidate their opposition.) After an investigation, Fitzroy sided with the Maori.

Submission + - UMG v Grooveshark settled, no money judgment against individuals

NewYorkCountryLawyer writes: UMG's case against Grooveshark, which was scheduled to go to trial Monday, has been settled. Under the terms of the settlement (PDF), (a) a $50 million judgment is being entered against Grooveshark, (b) the company is shutting down operations, and (c) no money judgment at all is being entered against the individual defendants.

Comment Screw Popularizations! (Score 1) 129

I have no doubt that the holographic principle is an interesting mathematical representation of certain physical laws. It is no doubt quite useful in solving certain problems and may even be suggestive of new phyisical theories.

However, it's just nonsense to get excited just because you know that the physical laws can be represented in fewer dimensions. OF COURSE THEY CAN. You can always code the information about any functions/distributions/whatever in n dimensional space in fewer dimensions. The holographic principle is just doing it in a way that isn't horribly ugly (probably preserves certain properties that aren't even mentioned in popularizations). In fact it's not at all uncommon for the information about the solution to some (class of) mathematical problems to be fully reflected in the behavior of that solution on some smaller dimensional part.

In short, while this may be quite interesting to the people actually doing the math if you aren't you certainly shouldn't pretend this gives you some deep insight into what the universe is "really" like.

Comment Useless Bandaid (Score 1) 634

Why should it matter if there are fewer female engineers than male engineers? Women outnumber men by a large percentage in most humanities graduate programs but it would be absurd to suggest we need to do something to fix that situation. People have gotten so caught up in the numbers that they have forgotten the *REASON* we care about underrepresentation.

THE REASON TO WORRY ABOUT THE UNDERREPRESENTATION OF WOMEN IS BECAUSE YOU BELIEVE WOMEN ARE BEING DENIED A FAIR OPPORTUNITY TO PURSUE CAREERS THEY WANT.

This supposed solution is at odds with that concern. After all, if women aren't entering engineering simply because they don't find engineering jobs as attractive (and not because they were discouraged) there is no problem at all. Both men and women are simply choosing the type of work they prefer to do. If it turns out that women find work that is more socially meaningful more fulfilling that's great for them and we shouldn't mourn because they choose the type of work they prefer.

Moreover, this kind of "solution" doesn't really address the underlying problem we care about. If women are being discriminated against or discouraged from studying STEM subjects then no incentives at the college level removes that discouragement or discrimination. Even if you gain gender equality in engineering you haven't made things any better if, but for discrimination/discouragement, women would have made up 75% of the profession. This is just a band-aid to make people look better not a solution.

Comment The grid needs storage - not battery storage (Score 4, Informative) 334

There are many ways to 'store' electricity. Batteries are just one.

I rather like this one, a thermal storage solution. Putting air into and out of bladders under deep water is a very simple method, as is moving water up and down hills. Then there are flywheels and fixed volume compressed air storage. (The air bladders above are fixed pressure compressed air storage.) There other thermal storage possibilities, but getting good round trip efficiency is tricky.

There are non-traditional battery techniques too: flow batteries (liquid electrolytes in tanks, adding storage capacity is as easy as adding tanks full of electrolyte) and molten metal batteries (take the idea of aluminium smelting and make it reversible).

All the non-battery alternatives I can think of work at industrial scale, so if you're looking for a household/small business solution, I think that at least for now batteries are it.

Comment Re:Managers & HR take note (Score 5, Insightful) 124

There are three lessons here. One is about arbitrary work requirements, which you've made well.

Second is the problems which arise when vertical integration in your company means that one level's customers are another level's competitors. This conflict of interest is liable to drive away customers. (A company my father worked for many years ago had a similar issue: one branch manufactured and sold refrigeration equipments and spare parts. Another branch maintained and repaired refrigeration equipment, so their competition was the manufacturing branch's customers. The maintenance branch was separated into a new company to avoid this problem.)

Third is when you have a large corporation with an innovative product, that innovative product's potential can easily be crippled by being held hostage to vested interests of other parts of the corporation.

Comment Re:I Disagree with the Summary (Score 4, Interesting) 342

Someone in the Youtube comments says "The flight profile veers the booster off to the side on purpose so the exhaust from the final burn isn't directed at the barge where it could do damage"

If this was a planned manoeuvre, I'm much happier. Can anyone confirm this statement?

Comment Re:I Disagree with the Summary (Score 1) 342

I was shocked at how abrupt and extreme the pitch changes were. I think so long as it needs such gross adjustments so close to landing, landings will be unreliable with a significant chance of failure. It is not at all like the tidy landings made by the Grasshopper test vehicle.

Two engineering changes which could make a big difference are lower minimum thrust (so it can approach the landing with lower acceleration) or lateral control rockets (RCS) at the top of the stage.

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