He says:
-there is a lot of oil all over the world (app. 100 trillion gallons)
-people may predict that it's OK just because we have a lot of it
-In the last 150 years, oil has been an important energy source, but has been decreasing for the last 25 yrs
-there was a peak wood, a peak coal, and a peak oil / in the future he predicts that there will be natural gas and renewables peaks
-energy sources have been becoming less carbon intense
-rearranging molecules can create totally different substances (chalk to stone)
Question:
Would there have to be chemists and geologists to figure out the method?
What happens after the peak renewables?
One word:
prediction
-we hypothesize and experiment in order to find out if our predictions are right. It this one right?
Tuesday, November 23, 2010
Wednesday, November 17, 2010
[TED] Teaching kids real math with computers
Conrad Wolfram talks about the use of computer in our education on mathematics. He says that we are wasting our time trying to "calculate" which computers can do easily. He shows how the real math in this world is used in much more diverse settings and problem solvings, whereas the math we teach in schools are far more about calculation. The crucial steps he explains is that we have to be smart about using technology and not waste time solving problems by hand.
He also answers popular controversy where people say solving by hand is beneficial. However it is relatively smaller compared to what we really need to know for real world math.
Questions: How did we discover technologies that can do things we can't ever do better or faster? (A whole new mind, where he says that we have to find a job that no one and nothing can do faster or cheaper)
I think our education system should have a variety of real world teachings. Although we are learning the basics, we should be outside more often, actually discovering the world, not sitting in a classroom doing some math problems.
One word: imagination
-we need to think in terms of the big picture of the world. We shouldn't just look at the short term gaining and loss, but also consider the long term effects. And to do that, we need to use our imagination.
He also answers popular controversy where people say solving by hand is beneficial. However it is relatively smaller compared to what we really need to know for real world math.
Questions: How did we discover technologies that can do things we can't ever do better or faster? (A whole new mind, where he says that we have to find a job that no one and nothing can do faster or cheaper)
I think our education system should have a variety of real world teachings. Although we are learning the basics, we should be outside more often, actually discovering the world, not sitting in a classroom doing some math problems.
One word: imagination
-we need to think in terms of the big picture of the world. We shouldn't just look at the short term gaining and loss, but also consider the long term effects. And to do that, we need to use our imagination.
Friday, November 5, 2010
[TED] David Bismark: E-voting
David Bismark speaks about the fraud that wrongdoings that happen during elections. He says that there always is something that goes wrong in an election, especially if it is a country-wide, large one.
He says that the voters have rights to 'verify' their votes, and find out if their votes were counted correctly, while still keeping the votes a secret.
He says, switching around the names of candidates on the ballot form and then shredding the half that has the name on will do the job. The other side with choices will get scanned by its own barcode, and that way no one know who the person voted for, yet it can be checked by going online.
I think it is a very good idea, since many things are already done online. If a safe voting system takes over the traditional type and possibly work better, it would prevent fraud and miscounting that can lead to bigger issues.
The question I had was what if the person loses the encripted vote sheet? Also, what is someone had to find out about the vote? Could it possibly become a problem that cannot be solved?
The word I chose was honesty. Nowaways, people cannot even trust the government who is supposed to protect its citizens and now election methods are starting to be questioned for its effectiveness. When will this world become an honest society?
He says that the voters have rights to 'verify' their votes, and find out if their votes were counted correctly, while still keeping the votes a secret.
He says, switching around the names of candidates on the ballot form and then shredding the half that has the name on will do the job. The other side with choices will get scanned by its own barcode, and that way no one know who the person voted for, yet it can be checked by going online.
I think it is a very good idea, since many things are already done online. If a safe voting system takes over the traditional type and possibly work better, it would prevent fraud and miscounting that can lead to bigger issues.
The question I had was what if the person loses the encripted vote sheet? Also, what is someone had to find out about the vote? Could it possibly become a problem that cannot be solved?
The word I chose was honesty. Nowaways, people cannot even trust the government who is supposed to protect its citizens and now election methods are starting to be questioned for its effectiveness. When will this world become an honest society?
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