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Nutrition for the mind

Fact or Opinion?
Common Sense or Nonsense?
Explanation or Excuse?
Open-minded or Empty-headed?

Just as some foods that taste good might have little nutritional value, or could even be harmful, ideas sometimes seem emotionally satisfying but have little basis in fact or logic. Such ideas could be harmful if they become so entrenched as to obscure alternatives that might lead to the truth. Be at least as careful about what goes into your mind as you are about what goes into your stomach.

Professor Tangent can help you decide with skeptical inquiry, brainteasers, games, logic, common sense, humor and curriculum suggestions for educators, homeschoolers and students of all ages. Quality thinking protects you from being deceived by others, and prevents you from deceiving yourself.

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Who's been credited with saying it?

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logic, skeptical analysis Logic

Quality Thinking

logic

Updated 19 Oct 06

logic, skeptical analysis Brainteasers

Fun Logic

brainteasers

Updated 8 Apr 07

logic, skeptical analysis Classroom Curriculum

Lesson Plans

class curriculum

Updated 16 May 06

logic, skeptical analysis Games

Challenge the Professor

games

Updated 30 Apr 06

logic, skeptical analysis Humor

Twisted Logic

humor

Updated 30 Apr 06

logic, skeptical analysis Seriously now

20 Pounds of Baloney in a 10-Pound Bag

skeptical analysis

Updated 31 Jul 06

logic, skeptical analysis Tangent's Tangents

The Professor Goes Off on Some

random thoughts

Updated 16 Oct 07

logic, skeptical analysis Controversial Conundrums

No Free Rides - Just a Push to Get Started

controversy

Updated 30 Apr 06

logic, skeptical analysis Life, the Universe, and Everything

What's It All About

controversy

Updated 30 Aug 07


logic, skeptical analysisWhat's a tangent?

Mathematically, a tangent is an angle's sine divided by its cosine. A graph of the tangent function starts at 0, increases to infinity, drops instantly to negative infinity, increases until it returns to 0, then starts all over again. A straight line touching the rim of a circle at only one point is also a tangent. All four sides of the blue squares in Professor Tangent's logo are tangents to the inner green circle, a pictorial representation of the professor's occasional tendency to "go off on a tangent". A "tan gent" is also what the cultured professor becomes after a few days of lounging on the beach.

brainteasers, logic, skeptical analysis

The Tangent Function

As the angle (represented by the X axis) approaches 90°, the value represented by the Y axis approaches infinity. This is called an asymptote. Just past 90°, there is another asymptote in the negative direction. What happens at exactly 90°? Like the concept of infinity, it's not defined precisely. We can only really know what happens as we get close - and we can get very close. It's kind of like filling pages with 9s - the number keeps getting bigger (and closer to infinity), but no amount of paper is sufficient to actually reach infinity. Learning is a similar process. You can keep gaining expert knowledge (and getting closer to knowing everything that might be known), but you'll never know everything (and can never be certain that there's nothing left to learn). Okum prefers the short version: "You don't know what you don't know."

brainteasers, logic, skeptical analysisOkum Taylor

A close friend of the professor, Okum Taylor lacks a rigorous academic background, but the professor respects Okum's abundant common sense, practical analysis and ability to simplify seemingly complex issues.

humor, logic, skeptical analysisWho thinks up all this stuff???

Many people. Some of these ideas may be thousands of years old and are probably unattributable. Beyond that, why be concerned? "This stuff" is either reasonable or it isn't. If it isn't, convince us and we'll change it. If it is legitimate, blaming it on a particular individual won't make it any truer, and could diminish the contributions of others who may be unknown. Think of it as stone soup for the soul.

If I have seen further, it is by standing upon the shoulders of giants.
Sir Isaac Newton

Many ideas grow better when transplanted into another mind than in the one where they sprang up.
Oliver Wendell Holmes

Learn from the mistakes of others - you can't live long enough to make them all yourself.
Martin Vanbee

Attributing quotes can be particularly troublesome and unreliable. Usually, there's no practical way to trace the ultimate source, or to know what the exact words really were. The professor selects quotes that are interesting, important, or clever on their own. If nothing else, an attribution means that we wish we could take the credit, but someone else thought of it first.

brainteasers, logic, skeptical analysisContacting the or

Questions, comments, suggestions and links are welcome (as are brainteasers, puzzles, games, and your thoughts on logic, skeptical thinking, etc.) but you may not always get a personal response. You're most likely to get a reply if you mention what you're ultimately trying to accomplish, or if you have a testable hypothesis. All submissions should be accompanied by specific permission for the professor to use and distribute it. Reliable information concerning the source of unattributed quotes, humor or anything else is also welcome.

 

 

 


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brainteasers, logic, skeptical analysis, humor Links to other sites

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