Euclid's Elements Book I, Proposition 1

On a given finite line to construct an equilateral triangle
Click the figure bellow to see the illustration.



Read more at:
Euclid's Elements Book I, Proposition 1

Mascheroni Construction with a Compass Alone - Index

Click the figure below to see the Mascheroni Index.


See more:
Mascheroni Construction with a Compass Alone - Index.
Level: High School, SAT Prep, College geometry

Mascheroni construction: Find the center of a circle with compass alone.

Proposed Problem
Click the figure below to see the complete Mascheroni construction: Find the center of a circle with compass alone.


See more:
Mascheroni construction: Find the center of a circle with compass alone.
Level: High School, SAT Prep, College geometry

Must see video on China's economy

Via deserved and necessary hat tip to Edward Harrison at Credit Writedowns and to reader MR for sending the link (gracias che) check out this video of Hugh Hendry surveying rows upon rows of empty Chinese high-rised buildings and more being constructed. Amazing, compulsive viewing and 100% necessary knowledge for investors.

Harrison asks in his post "Who is going to pay for all this stuff?". Well that's easy enough to answer; if your salary comes in US dollars have a look in the mirror.

Demagogue

Alan launches into Nirvana's Lithium at a local Karaoke bar

President Twobreakfasts was on Peru radio today. His message was "Businesses have no material reason to lay off workers or reduce investments" and similar demagogic guff and nonsense about "the fear factor".

Nice timing, as Peru's biggest steelmaker 'Aceros Arequipa' today announced it was suspending production "for maintenance purposes", but customers shouldn't worry because they had enough stock to continue to meet demand. (UPDATE: here's Reuters English language on the story). Or in other words the 40% drop in demand for steel products (especially re-bar used in construction) means the market is now way oversupplied. Note that October stats showed a 14% increase YoY in construction activity in Peru.....go on, take a wild guess about next year's figures...

Acero Arequipa's maintenance program has suddenly been brought forward from 2010, but don't worry. All is well. I mean, just one month ago Alan himself said that Peru was totally protected from any economic crisis. Isn't the word of your President good enough these days?