
A Place for Answers - in 100 hours or less.

Q: Dear 100 Hour Board,
Odd mixes of chemicals really can bring out the best of tastes. Salt is just the beginning. So keep on eating melon with a shaker my friend. And open your melon mind to try it out on a couple other things. But don't be afraid of other things. Pure cocoa in a tomato sauce for example really helps bring out that non-acidic or sweet tomato flavour (umami! like glutamate).
A very hungry 100 Hour Board
designed to make it easier to find letters. If you look down at your keyboard right now you will see that FGHJKL are all together. This is the same sequence as the alphabet. This was supposedly "easier" for configuration of the type writer mechanics not the typist. If you have ever used an old type writer you know about those swinging arms that pull up and hit the paper to mark the letter. The problem was, how do you configure a keyboard to type without crossing those letter hamers on the typewriter? QWERTY solved that issue. But typewriters are no longer used and the mechanics issue was resolved through ribbon cartridge technology.
per minute (NWPM). In 1944 the US Navy let Dvorak do some research on 14 typists to see what results he could get. Three years wasn't a good turn around for the Navy. Dvorak could train in 52 hours with speeds that were 74 percent faster and 68 percent more accurate. However to this day there is speculation as to whether these findings were fabricated. 

It is obvious that the question brings up a shady history of aggressive business practices that McDonald's Corporation would like to cover up. The hotdog can lead to the smoking gun that is known as Ray Croc.
Humans and many other animals can readily walk forward or backward. In insects, the nervous system changes the effects of sense organs that signal forces on a leg when the direction of walking is reversed. The short answer is that insects can walk backward if given the correct signal to their little brains. 
when in a fight or flight situation they always choose flight and in order to escape with speed the cockroach will run on their hind legs. Putting aside the human evolution implications of this fact, this demonstrates that the in order for the cockroach to run with a specific velocity it must reduce the number of CPGs to process- thus using only two legs rather than all legs. Suddenly, the evolution of Insect Ranger doesn't seem so rediculous.
terms of terrestrial walking Michael is the one to beat. The moonwalk is a highly adapted stepping pattern. His ability to give a convincing impression of forward walking, while actually moving backward, apparently took many hundreds of hours of practice, and shows that the basic kinematic pattern of leg movements can be almost completely inverted, generating ground forces with the bent leg, while sliding the apparently supporting leg over the ground. So lesson learned- if you want to get the girl (in Michael's case I think it is a little boy) you must learn and apply physics in your gate. But this also proves that we as humans have not entirely discovered all that we can do with just our walk alone. And that is exhilarating!
Why do "identical" twins have different finger prints?- Not so identical are they?
Irish Twin
A: Dear Celtic Brother,
Having an identical twin certainly does have its benefits: a free friend, an automatic transplant organ source, and a diabolical crime partner. Imagine you rob a bank, or knock-off somebody, and can blame it on your twin. The jury would never know who really committed the crime - and given just DNA evidence - either would Grissolm or the CSI team (no matter how much Prada they wear)! But if you left a fingerprint, it is true, the coppers could tell you apart from your twin. (Or if you have an identifiable tattoo that leads an eyewitness to correctly pick you apart).
Now, if you're being that nitty-gritty about it, identical twins don't exactly have the same DNA. They start out with the same zygoate (single fertilized egg) that splits: so on Day 1 they have the same genetics. But over time the environment inside the womb - and eventually outside - will change the DNA. Even naturally occurring mistakes in gene translation will cause differences. But things like different temperatures, blood flow, food, nutrients, position, etc in the womb can change the genes. Heck, DNA isn't even the same in all parts of your body. (Dr Starr, Stanford U)
Fingerprints are an amplified piece of this puzzle. The pattern of whorls, arches, loops are dermal ridges which are at first determined by genetic code in the baby. Around the 13th week of pregnancy the baby develops these, however immediately they are changed and influenced by the surroundings - ie. mother. Touching the amniotic sac, their face, what they eat, etc. changes the patterns slightly. But the changes are dramatically amplified in the patterns we see and therefore offer a distinguishing feature between twins.
Identical twins, similarly, aren't that identical when born. Their other features and genetics have the same influence of environment. This is all referred to as phenotype - the way we or species look. Genotype (DNA) + environment + random variables = Phenotype.
So yes. That extra helping of General Zhaos chicken when you are preggo could make your kid's fingerprints randomly closer to a mass murderer. You never know.
100 Hour Board
Oh and PS: Chance of having twins 1:40, identical twins 1:240, spontaneous fraternal twins 1:60, two sets of fraternal twins 1:5
Just remind your self that AC is the schoolboy-in-knickers, Angus Young. Respectable and American (well not quite but use your imagination).
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