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Re: Forcing people to eat nuts. Date: 1997/08/04
In article <5s3nai$c07@netra.montana.edu> gmt1810@msu.oscs.montana.edu (Mark Tarka) writes:
> I've got this silly belief, that _nuts_ contain as much protein as, > say, red meat. > > Would it be possible to get folks to eat _nuts_ instead of, say, > cattle?
They will do it when (I'm hoping that is soon) they (come on you biologists) develop nuts that taste like meat, are as nutritious as meat, and are as expensive as meat?
Link to thread of next article. Re: WHAT IS YOUR IDEAL WORKOUT AND SCHOOL? Date: 1997/08/04
In article <01bca03d$a8179be0$755b03c7@jackel.indy.net> "David Graham" <jackel@indy.net> writes: ... > My weakness: > My stamina, I am good for about 10 minutes of sparring and then tire out. > Stamina is extremely important in Jujitsu, and I really need to work on it. > I am stronger than most people, but become very defensive when I get > tired.
My 2 cents on the above.
Mosts fights are won or lost in the first few seconds (I have done more thinking then fighting so what do i know)?
Some training should therefore be done at 110 percent effort over short intervals followed by enough time for the body to recover and again give 110 percent. But then you lose time resting. (Question, can one learn to summon large amounts of adrenaline or what ever natural chemical the body can produce to help when it is time to fight or take flight?)
I would also suggest some form of fun aerobic training, basketball, running, biking etc. done at a high level of intensity followed by lower intensity. But then sparing can be pretty damn aerobic so i guess you can ignore the last sentence %^).
Exercises I find fun.
1) A "dangerous" game of catch with my daughter. I try to make throwing the softball fun for both my daughter and myself by getting as close to my daughter as i can. I allow her to try and hurt me, i let her throw the ball as hard as she can and at my face or any other body part. She gets mad when i stand sideways to protect my front. This has got to be good for training reflexes and its a lot of fun. She has yet to take off my head but she has made contact (i usually move back). What is interesting is when i feel "strong" and healthy (I'm 40 and at times feel way over the hill) i can get very close to her with little fear but on my down days i must move back and i still get hit. My reflexes (and courage) strongly depend on my state of being.
2) Playing catch with yourself. I stand from 10 to 20 feet in front of a concrete wall and while pretending I'm some great pitcher throw a softball at the wall. If one picks the target just right the ball comes right back at you and with a reduced speed so that one can bare-hand catch the ball. I throw with varying intensity but always try and max out a couple of throws. Many groups of muscles are involved in a hard thrown ball. After a couple of hours of throwing i have destroyed only one softball (guess I'm not throwing hard enough).
To make things different stand close to the wall and at a very fast pace throw the ball at the wall and at such a point that the other hand must catch the ball. Keep doing this throwing from one hand to another via the wall. This way both hands get better. Substitute a basketball for the softball and do as above.
3) Inside a large gym take a basketball and kick the hell out of it towards a wall. Kick it so that it comes right back to you. Get close to the wall and kick it up, down, sideways, experiment, have fun, get tired.
4) Squeeze the tennis ball. If your hands are not that strong or you just want to vary the resistance take an old tennis ball and cut a 3/4 inch slit in it. Then by grabbing it differently one can give your hands and fingers a good work out. Use an uncut tennis ball for greater resistance and use an old dead on for less resistance, keep several on hand. Everyone has spare time when they can get some squeezing done.
5) Swing the bat and hit the ball. Go to some park or play ground that has a wire baseball backstop. Throw the ball up and hit it with the bat with varying intensity into the backstop. If you are right handed hitter switch and hit left handed, who cares if you miss a lot. Its more fun hitting the ball to a friend but sometimes you train alone.
6) Toughen your fist by hitting your palm or other things. Give time between hits to allow the blood back into the hand. Switch the hand that gets hit.
7) Mountain bike riding over varying terrain.
8) A hard game of basketball.
9) Wrestling with a friend.
10) Play "football" using a soccer ball with girlfriend or wife. Anybody can be a quarterback or wide-receiver when using a round football.
End, my 2 cents.
Link to thread to next article. Re: Why Space is 3 Dimensional. Date: 1997/10/09
In article <61gpi1$e5f$1@agate.berkeley.edu> john baez <baez@math.ucr.edu> writes:
> Eh? I'm surprised at your surprise. *All* the most interesting and simple > "why" questions about physics remain unanswered. This is one reason the > subject is so fun. Progress in physics is usually made by carefully avoiding > these questions... until there is a good way to attack them. Fools rush in > proposing the first answer that comes to mind, while the wise hang back > and ponder until the moment is ripe.
And others like Wheeler will make educated guesses before the moment is ripe.
Don't hang back too long, the fruit may fall from the tree.
Link to thread of next article. What if the proton decays. Date: 1997/10/09 The lifetime of a proton has been found to be very long. In grand unified theories this long lifetime is a result of the very large mass of the gauge particle responsible for proton decay? The predicted mass of this particle is a little below what is required to match the experimental half-life of the proton?
Can we hope that the mass of this very heavy gauge particle might be less in the early times of the universe?
If a proton and an electron could annihilate (multi-step process) in the early universe what if any puzzles would this physics explain.
What do you think, can down quarks change into leptons? My uneducated guess is yes, the idea seems too pretty not to be true.
Re: What is an electromagnetic field? Date: 1997/10/27
In article <344e7859.582859@news.zeta.org.au> somlo@zeta.org.au (Peter Somlo) writes:
> rnh@gmrc.gecm.com (Richard Herring) wrote: > > >Peter Somlo (somlo@zeta.org.au) wrote: > > > >>Explaining a physical phenomenon with mathematical terms never > >>satisfies me. THIS NEVER SAYS WHAT THE ITEM IS. In my view, fields are > >>stresses of space. > > > >So you prefer metaphor. Fine, but don't be fooled into thinking that > >that says what something *is*. All it tells you is how it behaves, > >in handwaving terms instead of mathematical ones. It can mislead, too. > > > >We can precisely describe the stresses in material objects, on several > >spatial scales. So "stress" is a well-defined concept, and applies > >to material objects. Apply it to an immaterial abstraction like "space", > >and it ceases to be so defined. If you don't believe it, try explaining > >just why fields are "stresses of space" rather than "strains of space", > >which seems to me just as valid a metaphor - and just as invalid. ... The equations of elastodynamics (assume density approximately constant for an elastic continuum) and electrodynamics are not too different, compare:
or without constants,
Of course we forgot
There should be a similar equation for elastodynamics, help anyone?
> Probably my view was influenced by a lecture once I attended, where > the lecturer pointed out that 'vacuum is the stiffed medium known'. > Why? Because the velocity of light (em rad.) is so high. (In steel, > sound travels faster than in air, because steel is stiffer.) I know > the limitations of analogies like this, but sometimes a bit of lateral > thinking is a help...
What is large (speed of light squared) is the ratio of two numbers, something like stiffness divided by mass density. This ratio can be made large in two ways. Make stiffness large or make mass density small. What is the mass density of vacuum?
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