Saturday, June 18, 2011
Wednesday, May 05, 2010
"I try not to talk about these things too often, but Stephen Hawking, speaking loosely and probably after knocking back one-too-many, has publicly suggested the possibility of time travel. He reaffirms that travel into the past is impossible, so there's no need to quibble on that point. However, he posits the potential to travel forward, relying on Einstein's theory that objects nearing the speed of light progress through time at a "relatively" slower rate than objects on Earth. That is, a person moving at 98% of the speed of light for 20 years would find the Earth had "aged" 7,500 years.
Yet this is not due to a traveler having stepped outside a "stream" of time and reinserting himself in an extant, "future" age already in place and waiting to be discovered. Rather, in accordance with static theories of time as a non-progressive measurement of "aging," it simply reveals the unified application of time's effect on various objects in a consistent manner, according to their relative conditions (i.e., speed). So, there is no future world (or infinite worlds) already in place, merely awaiting our arrival. Time is simply the observation of material entropy and the extinction of potential possibilities (i.e., thoughts and actions) through the free-willed choice of particular decisions during a single, ever-present moment.
Steve is so sloppy about these things sometimes." [Emphasis mine, the better to highlight the special]
Saturday, April 03, 2010
It was on a Friday morning
That they took me from the cell
And I saw they had a carpenter
To crucify as well.
You can blame it on to Pilate,
You can blame it on the Jews
You can blame it on the Devil.
It’s God who I accuse.
“It’s God they ought to crucify
Instead of you and me,”
I said to the carpenter,
A-hanging on the tree.
You can blame it on to Adam,
You can blame it on to Eve.
You can blame it on the apple,
But that I can't believe.
It was God that made the Devil
And the woman and the man,
And there wouldn't be an apple
If it wasn't in the plan.
Instead of you and me,”
I said to the carpenter,
A-hanging on the tree.
"Now Barabbas was a killer
And they let Barabbas go,
But you are being crucified
For nothing that I know,
And your God is up in Heaven
And He doesn't do a thing,
With a million angels watching
And they never move a wing."
Instead of you and me,”
I said to the carpenter,
A-hanging on the tree.
“To hell with Jehovah"
To the carpenter I said
" I wish that a carpenter
Had made the world instead.
Goodbye and good luck to you;
Our ways will soon divide.
Remember me tomorrow
The man you hung beside.”
“It’s God they ought to crucify
Instead of you and me,”
I said to the carpenter,
A-hanging on the tree.
Sydney Carter
Thursday, January 21, 2010
Sunday, January 17, 2010
Stream of consciousness
I have a paper to draft and a number of characters to learn before tomorrow, so clearly the best thing to be done is write twaddle for 20 minutes. I've have been unconscionably lazy today:
"My husband" remarked Mrs Sumner, wife of the Warden of All Souls College, Oxford, when introduced to [Frederick, later Lord] Lindemann ('the Prof') "my husband always says that with a First in Greats you can get up science in a fortnight"(After the Victorians, page p.374)
5. Oh, and speaking of many worlds and it's enthusiasts, does anyone else think that equation 11 of Tegmark (2000) [1] is inconsistent with the claim that the brain is "too warm" for quantum computation to take place, and are in fact evidence that the brain is not warm enough? This isn't something I care about very much, and I certainly not familiar with the literature to offer constructive criticism on this point, but a coherence time proportional to a positive exponent of temperature strikes me as unusual to say the least. [There is a reason why experimentalists get through quite so much liquid helium...]
Tuesday, January 12, 2010
Monday, January 04, 2010

Sunday, January 03, 2010
Saturday, January 02, 2010
Physics
Introduction to lasers
Why you should care about electron spin*
Quantum whats? Semiconductors at the nanoscale
Photonic crystals
Space based solar power - WITH LASERS
The QW solar cell
Research blogging - doping quantum dots
[Update the links]
What I Did On My Holidays
“What do you tell the dead when you lose?” - Yasukuni Jinja
Shinjuku metropolitan building and aging modernity
Book reviews
A review of Japanese-English dictionaries
Public service and notes to self
Hermite polynomials
Python practice
A note on SESAMs
Trolling
Random Dictator with Quota - the best form of PR
Why Physics should be more like Media Studies
The history of the LASER as a counter-example to the Libertarian model of scientific innovation
Penrose: the case for the defence*
Tuesday, December 15, 2009
Sunday, December 13, 2009
Saturday, December 05, 2009
"To continue… physicists can’t agree whether energy travels in “waves” or “packets” (google qualtum mechanics if you are interested), so there are competing theories, and the technology doesn’t yet exists to falsify (or not) the theory of relativity, so it remains a theory until/unless falsified.I make my point again – you cant’ have empirical “consensus”, 2+2 either = 4 or it does not. If someone could prove that it equalled 5, then it would equal 5, not by consenus but by empirical evidence"
Monday, November 30, 2009
What is going on at Google? I only ask because last night when I typed “Global Warming” into Google News the top item was Christopher Booker’s superb analysis of the Climategate scandal.
It’s still the most-read article of the Telegraph’s entire online operation – 430 comments and counting – yet mysteriously when you try the same search now it doesn’t even feature. Instead, the top-featured item is a blogger pushing Al Gore’s AGW agenda. Perhaps there’s nothing sinister in this. Perhaps some Google-savvy reader can enlighten me…..
UPDATE: Richard North has some interesting thoughts on this. He too suspects some sort of skullduggery.
Thursday, November 26, 2009
It's no use pretending this isn't a major blow. The emails extracted by a hacker from the climatic research unit at the University of East Anglia could scarcely be more damaging. I am now convinced that they are genuine, and I'm dismayed and deeply shaken by them.
Yes, the messages were obtained illegally. Yes, all of us say things in emails that would be excruciating if made public. Yes, some of the comments have been taken out of context. But there are some messages that require no spin to make them look bad. There appears to be evidence here of attempts to prevent scientific data from being released, and even to destroy material that was subject to a freedom of information request.
Worse still, some of the emails suggest efforts to prevent the publication of work by climate sceptics, or to keep it out of a report by theIntergovernmental Panel on Climate Change. I believe that the head of the unit, Phil Jones, should now resign. Some of the data discussed in the emails should be re-analysed. -[source]
Monday, November 23, 2009
Tuesday, October 13, 2009
Saturday, September 12, 2009
Friday, September 04, 2009
Monday, August 31, 2009
Even if the system were to become something like Japan's democracy in the 1920s, with two more or less conservative parties competing for power, this would still be preferable to a one-party state. Any opposition is better than none. It keeps the government on its toes.-[source]
Sunday, August 30, 2009
Exit polls and early vote counting indicated the DPJ was heading to a victory much larger than the LDP's landslide win in the Lower House election four years ago, when Prime Minister Junichiro Koizumi's postal privatization plan gained widespread attention.
As the DPJ racked up seats to push it above the 241 needed for a Lower House majority--and even beyond the 296 seats won by the LDP in 2005--a who's who of prominent LDP lawmakers were going down in defeat.
Although Prime Minister Taro Aso won his seat in Fukuoka Prefecture, he indicated Sunday night he would step down as LDP president to take responsibility for the drubbing that many blame on the unpopular leader.
"We will have to accept the voice of the people that has produced such a severe result," Aso said.
The LDP now appears bereft of leaders. Party Secretary-General Hiroyuki Hosoda said he told Aso earlier Sunday that he and other top party executives would resign to take responsibility.
"We will seriously atone for our faults and prepare for the next election," he said.
The LDP came into the election in an unfamiliar spot: as the heavy underdog. Public opinion polls proved accurate, as the LDP was struggling to match the 113 seats the DPJ won when it was humiliated in the 2005 election.
One of the parties is led by an immensely wealthy grandson of a former conservative party prime minister, and the other is led by an immensely wealthy grandson of a former conservative party prime minister. One of these princelings 's tongue frequently gets tied in knots when he is trying to explain himself and the corruption of his colleagues, while the other's tongue frequently gets tied in knots when he is trying to explain himself and the corruption of his colleagues.We'll be treated to a load of tribalist bollocks in the UK, of course, of both the "DPJ? Oh noes, teh leftisses and there socialism!!1!" and the "Democratic Party Japan = UK Labour Party = WIN!" varieties.
