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Yclept 'Ole Phat Stu'
Caution : reading this blog may endanger your ignorance ;-) 
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Saturday, May 31, 2008
Big Brother :-(Big Brother - the surveillance state - is not only watching us at an increasing rate, he is also a vindictive little b*st*rd, determined to wreak as much vengeance as possible. A case in point : my car was recently driven by another person. Said person was snapped by a speed camera going 8 mph too fast. A mere 8 mph; or about 15 % over. So - as the owner of the car - I got the fine notice, with the trap-photo. A mere 20 Euros, a fair do, I thought. Until I read the fine(sic!) print on the notice :-
Now Germany is tightening its traffic fines & rules in the near future, so we can expect some even more vindictive stuff (if they are not already the case) :-(
Vindictive effers! All this to get a €20 fine. Where is this surveillance society going?
Friday, May 30, 2008
OMG! The Price of Oil ]:-(J ust had to refill the oil tanks for the central heating in my house :-( 4000 liter tanks. Took 3768 liters to fill up for a year. Costing 3520 Euros :-( Wow. That's almost 10€ per day on average. Triple what I paid last year. Almost 20% of the state pension eaten up by the heating alone. And it will get worse fast :-(
If you want to scare yourselves, go read about the forthcoming oil crash :-( Meanwhile I'm off to buy a couple of thick pullovers for next winter . . . Thursday, May 29, 2008
Multiplying two-digit numbers in your headW henever I blog about mental arithmetic, it provokes three types of reaction : mickey-taking (e.g. by Kees Kennis), an air of encouragement (e.g. by Sterling Camden), and a will to learn the mental arithmetic tricks yourself (e.g. by Xtreme English). In particular, Chip has been blogging about teaching his young son long multiplication. So in his comments, I teased him about how to do it a lot faster; today's post is to show him the special case. But today's post is for all 3 of you :-) When you were primary schoolchildren you learned your ten-times table off by heart. If you were a Brit of my generation you may have even learned the dozen-times table, Anglo-Saxons having counted to base 12 (dozens, gross etc). As geeky, snotty little know-it-alls, Tony, Anne and I even learned (and subsequently forgot) the score-times table. And yes, when computers came along I learned the 16-times table in Hex ;-) Be that as it may, most people use the 10-times table when multiplying multi-digit numbers. The standard algorithm taught involves a lot of work though. Let's look at two 2-digit numbers AB times CD. The binomial expansion tells us this is equal to 100*A*C + 10*A*D + 10*B*C + B*D. So you do four multiplications by table-lookup in the ten-times table you learned by rote, three decimal left shifts (= multiply by 10 or 100 respectively) and four additions while keeping track of the intermediate results.
I, on the other hand, learned an additional table - just as small as the 10-times table - of the squares of the numbers up to 99 (i.e. the 2-digit numbers). Example of use: To find the square of say 67, look in the 7th row of the 60s column and read 4489. Another? 78*78 is 6084. The algebra I then use is that (X+Y)*(X-Y) is = X2 - Y2. Let's do a simple example. 23 * 17 can be expressed as (20+3)*(20-3) and this is 20*20 - 3*3. From the table above 20*20 is 400 and we know 3*3 =9 from the 10-times table. So, by doing just one subtraction, 400-9 we have the answer, 391. Given a talent for just 'seeing' the average of two numbers X,Y and their semi-spread (X-Y)/2 I can use this table to multiply using just 2 table-lookups and one subtraction. Three steps instead of eleven. And yes, the talent CAN be learned :-) Of course, the more acute among you will have asked what I do when the spread is an odd number? Example 23*18. Then I just do the 23*17 multiplication and add the first number X. Just one additional step ( 4 steps, still less than 11) on ½ the occasions :-) Give it a try. After about 2 or 3 weeks you'll be up to full speed, ca. four times faster. Tuesday, May 27, 2008
Tarzan for Beginners ;-)Lord Greystoke would be turning in his grave if he saw this blog entry today ;-) Over the recent long weekend our motorcycle club took a 4-day trip down to pretty Pottenstein in Bavaria. On the friday morning the more musical and artistic members did a tour of Bayreuth and its Wagnerian opera house. But my friend Volker & I went and played Tarzan in the local tree-top climbing facilities. Here are a couple of photos :- On the left, Volker and I in our safety harnesses. On the right, a photo of me abseiling across from one tree to another. Did a "Geronimo!" instead of a Tarzan-yell tho' :-(
They kit you out in a safety harness, double opposing carabiner hooks (on the red ropes) and
abseiling wheels (on the black rope), then they give you 20 minutes of safety instructions and then let you loose
on five parcours of increasing difficulty.
The first is only 3 feet high, it is intended to acquaint you with the various ways of getting from one tree trunk to
the trunk of another tree, also with increasing degrees of difficulty. It's also for the smaller children (6 to 9).
The second is about ten feet up and is a little harder, but still OK for kids 10 to 14.
The final parcours goes up to 40 feet, so you need a good head for heights. Only really suitable for adults too.
We were quite exhausted after our 3 hours of pseudo-adventure, and sweating in our M/C leathers:-)
Sunday, May 25, 2008
The Demon King and Queen
Hope you had a really BAD day, dear?
I do a good impression of Dick Cheney, see?
Thursday, May 22, 2008
The Roots of ZeroM uch Ado about Nothing, today, folks :-) This blog entry was prompted by a drunken remark overheard in a pub, to wit "How can Nothing be Anything? Who came up with the idea anyway?" The Zero (=Null, aka nothing) has both a numerical value as well as a positional value in the columns of our numbering system. Two millenia BC, Babylonians left a blank space between digits to signify a zero in their base 60 numerical system. In 200 BC the ancient Egyptians inscribed a character representing a Null in the temple at Edfu. In 130 BC Ptolomy used a circle with a bar across the top to represent a zero, but the Ancient Greeks too had intensive discussions about "How can Nothing be worth Something?" The Romans didn't use a positional notation and had no character for Zero. The Mayans on the other hand used lots of different eye-shapes for Zero, viz :-
In 700 AD Indians were using a dot or a circle to represent zero (sunya, as they called it). The Arabic name for Zero was al-cifra. But it was an Indian man - Brahmagupta - in 628 AD who first formulated the rules for doing arithmetic with zero as used today. Finally, zero became recognised as a number in Europe about 1500 AD, and was used in Adam Ries' arithmetic primer, the little book I mentioned on the 4th of this month. Even then, people had problems accepting negative numbers even into the 17th century, although merchants had used them earlier for calculating debts. And as for complex and imaginary numbers, many people still have problems grappling with 'em :-( Monday, May 19, 2008
617 Squadron : the Dambusters65 years ago last friday 617 squadron of the RAF flew their attack on the Sorpe, Eder and Möhne dams in Germany. The RAF Battle-of-Britain commemorated this with a demonstation flight over Derwent Water (in the north of England), the location used for practice in 1943 due to its similarity with the approach run through the Möhne valley to the dam there. Here is friday's video. This Lancaster demo was done at about 160 knots at 150 feet in broad daylight. Imagine what it was like down at 60 feet. In unknown terrain. At night. In heavy flak! 
And since the three dams are each only about 40 miles from where I live, I rode my trusty motorcycle over to the Möhne dam the other night and clambered (in the dark) onto the crown of the dam midway between the towers and looked back east along the long Möhne lake to try to get a sensory impression of that night 65 years ago. Spine-tingling. Respect!
Friday, May 16, 2008
One of a kind...... an artisan's racing motorcycle. Stripped of its fairing, this is the unique solo URS.
 Back in the 1960s the motorcycles to beat in the 500cc solo class were the MV Agusta and the Honda, both of them air-cooled transverse DOHC fours, the state-of-the-art at the time. In the sidecar class, the BMW boxer (flat-twin) was the one to beat. The OHC BMWs would have been putting out about 68 HP @ 10,000 rpm, I guess. Helmut Fath (world sidecar champion 1960 on BMW) wanted something faster and so cooperated with Peter Kuhn to design and build an air-cooled transverse DOHC four. 44 years ago to this day (16th may) this engine ran for the first time, delivering 70 HP @ 13,000 rpm. By 1967 it was up to 80 HP @ 13,000 rpm. In 1968 Fath/Kalauch became world sidecar champions using Kuhn's artisan engine (no works support!). Success again in 1971 when Owesle became world champion, driving the URS outfit. The solo URS was unfortunately a bit less successfull. First URS wins were by Smetana in 1964 when he also set the Avus lap record. In 1967 englishman Colin Seeley built one of his beautifully minimal - almost skeletal - frames for the solo URS (see photo above) and had John Blanchard ride it. But Blanchard didn't get on well with Fath, so that cooperation soon stopped. However, Karl Hoppe became German champion in 1969 on the solo URS. Then everything was sold to George Bell, who owned the Münch factory at the time. When they ran out of money, John Blanchard took the solo racers in lieu of cash due. And this promising bike disappeared from the scene :-( Twenty years passed - the URS dark ages. Then in 1992 up popped Helmut Sing who bought the box of almost-junk which had been the URS from Blanchard. Helmut Sing spent ten years(sic!) restoring the solo URS, almost no single piece being usable. But, lo and behold, in 2002 the engine ran again! And in Oschersleben in August, Blanchard - never a slow man - was able to do demonstration races on the URS. The legend lives! And just this year, the solo URS was on auction by Bonhams - a specialist motorcycle auction house. And as it happens, my good friend and blogreader Paul Gockel happens to be the Bonhams representative in Germany. So he went over to England for the demonstration session before the auction. These are his two photos which I'm showing you here. Thanks Paul. NB: It didn't meet the minimum 100,000 GBP asked. In the photo below you see them on the demonstration/testing day. I don't know the guy on the right, but that's Colin Seeley in the centre and the gentleman in the racing leathers is - surprise surprise - Alan Cathcart. Alan is a journalist whose job it is to test ride (classic) racing motorcycles and then write test-reports about them (yes I really DO envy him his job ;-) So we can expect an exciting tale (as usual) from Alan.
 The background information I'm relating today is based on three excellent German articles by Winni Scheibe, whose website is well worth visiting if you can read German. Look for the articles on Helmut Sing, Peter Kuhn, and the Münch URS. Thanks, Winni! Wednesday, May 14, 2008
Michael Keith's neatly rounded taleBlogreader Bertram, writing from Munich (Germany), tells me that he is working his way through the links to my Recent Writings in my right sidebar and has just read the entry for PI-day. It reminded him, he says, of the self-referential story Circle Digits by Michael Keith, shown below. He also told me that the story is displayed as a large mural/poster in the HNF. So, since the HNF is just 25 kms away, I drove over and photographed it for y'all. The trick is to list the number of letters in each word of the story in succession; they give you digits of PI to 402 digits of precision. BTW, any punctuation mark other than a period represents a zero digit; periods can be ignored.
 Monday, May 12, 2008
Archimedes' Apples
 Continuing the thread on Arithmetic I'm blogging this month, here are two photos of Archimedes' apples. He demonstrated fractions (and addition thereof) to his students by showing them an appropriately cut set of apples. This demonstration set is made of wood, so as to be more durable. The (17/18th century) box is gradually falling apart :(  In the photo above, centre top shows 1/2 + 1/6 + 1/6 + 1/6 = 1, centre left shows that 1/3 + 1/3 + 1/3 = 1, top left is 6/7 etc etc. The multiples used enable the demonstration of GCD (greatest common divisor) and LCM (least common multiple). Saturday, May 10, 2008
Celsius 233**Today we remember with regret the Nazis' book burnings, 75 years ago, in 1933. Blinkered brainless brownshirts burning books. So - political motives apart - I'm asking "Which books would YOU most likely burn unread?" To answer this - partially - we can use a meme I picked up at Fillyjonk's Progress ;-) What we have here is the top 100 books most often marked as "unread" by LibraryThing’s users. I.E, they sit on the shelf to make you look smart? Bold the ones you've read, underline the ones you read for school, italicize the ones you started but didn't finish, asterisk* the ones you own copies of but have not (yet?) read. Join in! Oh, and I've struck through the ones I would burn ;-)
Friday, May 9, 2008
Philip! You old fart!!"A rose by any other name would smell as sweet" ?? The 1st family doubts that ;-)
 Just look at H.M's expression and Harry's reaction ;-) Wednesday, May 7, 2008
Dandy Lion :-)
 Young Susan (aged 10, writing from the UK) tells me she dutifully looked up all the words from my 24th April article on vocabularies, and asks if I knew that the English word "dandelion" comes from the French "dent de lion", meaning tooth of the lion? But why? That's probably because the leaves have a shape like lions' teeth, Susan. But it gave me an opportunity to go photograph our lion-coloured bulldog Kosmo in a field of dandelions for you, Susan. He's even poking out that one tooth for you too :-) Tuesday, May 6, 2008
Those books you'll never read ;-)
Somewhere
in a parallel universe - so the hypothesis last week at the pub - there are books whose titles are anagrams
of our own bestsellers. Not homonyms like the china maker from Zimbabwe's capital city (= Harare Potter),
but real full anagrams. So the pub challenge for this week was to come up with the best anagrammed book titles and the others
(and you, dear blogreaders) have to deduce the original titles.
Oh, you wanted to know about some of the banned books I've read?
Sunday, May 4, 2008
Ye Olde Arithmeticky :-)
L ook what I found at an antique bookstore! Adam Riese's famous 1525 arithmetic textbook! The first! Not really. It's a 1:1 scale facsimile copy produced in 1978 (so 'only' 30 years old) by the Curt R. Vincentz Verlag (=Press) in Hannover. The ISBN number to look for is 387970155-1. The hand-written original is in the Duke Augusts' library in nearby Wolfenbüttel and there is NO way I could afford it, so I'll have to use this copy ;-) Prior to 1525, if you were a rich merchant wanting to teach your sons/apprentices how to do 'Arithmeticky', you had to send them to Italy (Padua or Venice). They then spent months - even years - learning to do arithmetic with roman numerals! That's harder than it sounds. Addition and subtraction OK, but you try multiplication and division. Go on, try it yourselves. Divide CMMLIIX by CLVII only in roman numerals. You are NOT allowed to convert to our system, do the division and then convert back! And no using an abacus either! If you can manage that, well done. We'll proceed to doing arithmetic of fractions, compound interest, fractional discounts and even taking square and cube roots all in roman numerals. Imagine how hard that is! Let me assure you, it's bloody hard! Some of the merchant guild had been dabbling with the new-fangled arabic numerals. And then along came Adam Rysen (=Ries), born in 1492 (hi, Columbus!) , died in Annaberg in 1559 AD. Adam Ries wrote this little (144 pages) monograph showing a method of doing 'Arithmeticky' on lines and feathers. The Fraktur script used at the time makes it rather difficult (for me) to read nowadays (just look at the title page). But I'm struggling through it, gaining appreciation of another era, nearly 500 years ago, when this book was THE breakthrough for all merchants of the time. Just 70 years earlier (1455) Gutenberg had invented the printing press - he printed a run of 200 bibles first. William Caxton set up his printing press in the UK in 1476 if I remember correctly. So Adam Ries' arithmetic textbook shown here used this 'new' printing technology. It was printed and distributed widely in German-speaking Europe. In fact it was THE standard textbook on arithmetic for several hundred years! The book has no index, nor does it have a table of contents. You are meant to read, mark, learn and inwardly digest it serially :-) But section headers are printed in red, so there is some orientation. It covers addition, subtraction, multiplication, doubling, middling (=averaging), division and progression (used in compound interest calculations), both for whole numbers and for fractions (i.e. no decimals!). Examples cover discount, exchange rates (e.g. for gold and silver), roots, squares, pythagorean triangles, areas and volumes. Some of the methods covered are no longer in use today and when doing the examples you must make a deliberate effort NOT to use knowledge discovered after 1525 AD, e.g. algebra, iterative methods, binomials etc. All in all, a fascinating exercise teaching me what a HUGE advance this was at the time. Well done Adam Ries, you changed the face of numeracy 500 years ago and made the use of arithmetic widely available. Generations of students used your book :-)  This neat woodcut shows two people on the left (under the supervision of a merchant [centre, standing]) using the methods to do calculations for the coopers on the right. Another original frontispiece woodcut shows the methods of Adam Ries in daily use :-  PS: As an additional benefit the book is small enough to fit in a shirt pocket and so people back then could carry it around with them at all times in case they needed to refresh their memories on how to use some particular method described therein :-)
Friday, May 2, 2008
USA : a nation of losers?F rank Paynter had a good piece up yesterday , to wit, his Declaration of Peace [under the video (also v. good)] headed Mayday, mayday, misery accomplished. Continuing in Frank's tenor, let me point you to Lee Iacocco's new book. Do you remember Lee Iacocca, the man who rescued Chrysler Corporation from it's death throes? He has a new book out, and here are some excerpts reproduced below. The title is: Where Have All The Leaders Gone? (Lee Iacocca ; with Catherine Whitney). Lee Iacocca Says: BEGIN QUOTES : "Am I the only guy in this country who's fed up with what's happening? Where the hell is our outrage? We should be screaming bloody murder. We've got a gang of clueless bozos steering our ship of state right over a cliff, we've got corporate gangsters stealing us blind, and we can't even clean up after a hurricane much less build a hybrid car. But instead of getting mad, everyone sits around and nods their heads when the politicians say, "Stay the course"! Stay the course? You've got to be kidding. This is America, not the damned "Titanic". I'll give you a sound bite: "Throw all the bums out!" You might think I'm getting senile, that I've gone off my rocker, and maybe I have. But someone has to speak up. I hardly recognize this country anymore. The most famous business leaders are not the innovators but the guys in handcuffs. While we're fiddling in Iraq, the Middle East is burning and nobody seems to know what to do. And the press is waving 'pom-poms' instead of asking hard questions. That's not the promise of the "America" my parents and yours traveled across the ocean for. I've had enough. How about you? I'll go a step further. You can't call yourself a patriot if you're not outraged. This is a fight I'm ready and willing to have. The Biggest "C" is Crisis ! Leaders are made, not born. Leadership is forged in times of crisis. It's easy to sit there with your feet up on the desk and talk theory. Or send someone else's kids off to war when you've never seen a battlefield yourself. It's another thing to lead when your world comes tumbling down. On September 11, 2001, we needed a strong leader more than any other time in our history. We needed a steady hand to guide us out of the ashes. A Hell of a Mess! So here's where we stand. We're immersed in a bloody war with no plan for winning and no plan for leaving. We're running the biggest deficit in the history of the country. We're losing the manufacturing edge to Asia, while our once-great companies are getting slaughtered by health care costs. Gas prices are skyrocketing, and nobody in power has a coherent energy policy. Our schools are in trouble. Our borders are like sieves. The middle class is being squeezed every which way. These are times that cry out for leadership. But when you look around, you've got to ask: "Where have all the leaders gone?" Where are the curious, creative communicators? Where are the people of character, courage, conviction, omnipotence, and common sense? I may be a sucker for alliteration, but I think you get the point. Name me a leader who has a better idea for homeland security than making us take off our shoes in airports and throw away our shampoo? We've spent billions of dollars building a huge new bureaucracy, and all we know how to do is react to things that have already happened. Name me one leader who emerged from the crisis of Hurricane Katrina. Congress has yet to spend a single day evaluating the response to the hurricane, or demanding accountability for the decisions that were made in the crucial hours after the storm. Everyone's hunkering down, fingers crossed, hoping it doesn't happen again. Now, that's just crazy. Storms happen. Deal with it! Make a plan! Figure out what you're going to do the next time. Name me an industry leader who is thinking creatively about how we can restore our competitive edge in manufacturing. Who would have believed that there could ever be a time when "The Big Three" referred to Japanese car companies? How did this happen, and more important, what are we going to do about it? Name me a government leader who can articulate a plan for paying down the debt, or solving the energy crisis, or managing the health care problem. The silence is deafening. But these are the crises that are eating away at our country and milking the middle class dry. I have news for the gang in Congress. We didn't elect you to sit on your asses and do nothing and remain silent while our democracy is being hijacked and our greatness is being replaced with mediocrity. What is everybody so afraid of? That some bonehead on the News will call them a name? Give me a break. Why don't you guys show some spine for a change? Had Enough? Hey, I'm not trying to be the voice of gloom and doom here. I'm trying to light a fire. I'm speaking out because I have hope; I believe in America. In my lifetime I've had the privilege of living through some of America's greatest moments. I've also experienced some of our worst crises: the "Great Depression," "World War II," the "Korean War," the "Kennedy Assassination," the "Vietnam War," the 1970s oil crisis, and the struggles of recent years culminating with 9/11. If I've learned one thing, it's this: "You don't get anywhere by standing on the sidelines waiting for somebody else to take action". Whether it's building a better car or building a better future for our children, we all have a role to play. That's the challenge I'm raising in this book. It's a call to "Action" for people who, like me, believe in America. It's not too late, but it's getting pretty close. So let's shake off the crap and go to work. Let's tell 'em all we've had "enough." Make a "real contribution" by sending this to everyone you knows and care about..... our future is at stake! END QUOTES.
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Archive 2003: Mission statement Version 2 : This blog shall dispense easy snippets of simple but rare educational information in an entertaining manner, and bash (political) incompetence too. Occasional pix of trip reports are also OK. Link Disclaimer ENGLISH : I am not responsible for the contents or form of any external page to which this website links. I specifically do not adopt their content, nor do I make it mine. DEUTSCH : Für alle Seiten, die auf diese Website verlinkt sind, möchte ich betonen, daß ich keinerlei Einfluß auf deren Gestaltung und Inhalte habe. Deshalb distanziere ich mich ausdrücklich von allen Inhalten aller gelinkten Seiten und mache mich ihre Inhalt nicht zu eigen.
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This blog is not (even politically) correct. It consists of 72% satire & sarcasm,
31% scientific reporting, and at least 4% arithmetical errors ;-) Thus everything blogged
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