tag:blogger.com,1999:blog-53895171605476548832011-07-07T16:50:34.745-07:00Ranting about lots of topics. Most include physics, math and education of those, but inconsistency tends to force me to rant about politics, climate change (I know I posted politics twice now) and energy issues (make that thrice). By the way, there will be a lot of these (but don't worry, I (usually) only nest them twice (sometimes more though)).Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.comBlogger81100tag:blogger.com,1999:blog-5389517160547654883.post-63179101091514868252010-05-04T08:38:00.000-07:002010-05-04T10:17:32.835-07:00

In a recent post at the Galaxy Zoo Blog, Bill Keel wrote about the research on the dust distribution in galaxies, as studied by the fortunate existence of overlapping galaxies. One of those was UGC 4008, with the added specialty that it's not the bright part of the galaxies overlapping, but a dark part of the spiral (the left side of the upper, small galaxy is darkened and reddened by dust from

Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.com0tag:blogger.com,1999:blog-5389517160547654883.post-59522677057065179392009-11-05T12:39:00.001-08:002009-11-05T13:30:08.758-08:00

There's more to do with mirrors. What happens when you look at yourself, in a mirror, while you're moving?Special relativity has a lot to say on the subject. To begin with, you can't easily move faster than the speed of light, so your photons will hit the mirror earlier than you do (or fly by the mirror). That basically means that you can see yourself. Nothing strange there, yet. As you are

Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.com0tag:blogger.com,1999:blog-5389517160547654883.post-24113551039842282512009-11-05T11:43:00.000-08:002009-11-05T13:33:36.176-08:00

You might have seen the 2006 movie called Deja Vu. In it, the government found a way to look exactly 9/2 day back in time, and it's used to prevent some generic terrorist attack (the main character also falls in love, but this is omitted in my summary due to it being part of standard conditions for movies). Of course, controlling a wormhole for these purposes seems far-fetched at the moment, but

Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.com0tag:blogger.com,1999:blog-5389517160547654883.post-4608772703838435372009-03-18T03:53:00.000-07:002009-03-18T04:29:59.851-07:00

Disposable products probably are bad for the environment, because it is likely that they could be used again without much alteration. Take for example a bottle of juice: when it's empty it still is perfectly capable of containing fresh juice, although it might need some cleaning before re-use. It usually is dumped in a bin however, and at best it will go through the whole recycling machine before

Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.com0tag:blogger.com,1999:blog-5389517160547654883.post-24102263465864432882009-03-05T09:53:00.000-08:002009-03-05T13:03:26.239-08:00

Ever since humans started trading goods, transactions were (more or less) instantaneous events. Even today, seemingly continuous transactions, like wages and insurances, are transformed into repeating instantaneous transactions, mostly once every month or year.Even interest, which is continuous per definition, is averaged over a year and returned in one event.Doesn't this seem strange to you?Well

Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.com1tag:blogger.com,1999:blog-5389517160547654883.post-60819864530118470562008-03-16T14:36:00.000-07:002009-03-05T09:52:48.082-08:00

Basically, all new inventions occupy only three categories: convenience, safety and healthcare, and energy saving/efficiency gain. Actually, they all fall in the first two categories, but some new inventions don't do anything that couldn't be done before; no, those inventions just do it more efficient. And although convenience is important and safety and healthcare are definately great for

Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.com0tag:blogger.com,1999:blog-5389517160547654883.post-63522009635984390032007-02-20T08:43:00.000-08:002007-02-21T11:51:26.827-08:00

Hi all (and iAll, my imaginary iAudience which makes this writing useful as long as there's no real audience)!This is my first work-in-progress [WIP] post. It covers some idea which can and will be expanded in the future, for example through your comments. This time, a database in which every person is listed, including a lot of extra information.Like most of you (I assume), I sometimes wonder

Physionaryhttp://www.blogger.com/profile/03816336724073401388noreply@blogger.com0tag:blogger.com,1999:blog-5389517160547654883.post-70230227878766636822007-02-17T07:00:00.000-08:002007-02-17T10:58:00.774-08:00

Hello all.As this is my first post on a blog (my blog), this will probably not live up to your expectations. Which is what I would like to rant about today, because you probably don't have any expectations as there isn't any YOU yet (by now there is, because you read it now). This situation is very interesting compared to a while ago, when "politicians" (literally: people of the town) were

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