Soldato
- Joined
- 26 Dec 2009
- Posts
- 9,715
- Location
- North
Looks like they don't have very good schools in Yorkshire![]()
Bradford Grammar, is one of the best schools in the country believe it or not. Not that i went there

Looks like they don't have very good schools in Yorkshire![]()
Penicillin is fact
So why are some people black and some people white?
Penicillin is fact
Ive never seen a "white" or "black" person, ive seen shades of pink and brown and other colours.![]()
Therea are thousands of scientific facts, your statement was just incorrect.
Craterloads said:Its fact because we can see what it does.
Craterloads said:Another scientific fact would be there are approx 62,000 miles of blood vessels in the human body.
Way to dodge the question![]()
So why are some people black and some people white?
The main hypotheses which attempt to account for white skin suggest it is an adaptation to inadequate ultraviolet radiation. As humans moved out of the tropics, a conspicuous latitude gradient of skin tones follows the out of Africa dispersion, it is argued natural selection for sufficient ultraviolet penetration to enable vitamin D production gave rise to the evolution of skin pigmentation by the mechanism of evolution by natural selection. Deleterious health effects of insufficient vitamin D are also pointed to as confirmation that skin lightening was in response to strong selection pressure for maximizing vitamin D.[34][35][36] A variation of the vitamin D argument is that humans lived in Europe for several thousand years without their skin lightening and that it only became white after they adopted agriculture.[34][37] It is suggested that in Europe the latitude permitted enough synthesis of vitamin D combined with hunting for health, only when agriculture was adopted was there a need for lighter skin to maximize the synthesis of vitamin D, therefore it is suggested the elimination of game meat, fish, and some plants from the diet resulted in skin turning white several thousand years after modern human settlement in Europe.[38][39]
How it does that is always going to be the subject of a theory based on our current understanding of microbiology.
Im pretty sure that the mechanisms of how penicillin and any other anitibiotics kill bacteria is fully understood within microbiology.
We know that penicillin kills a number of infections. How it does that is always going to be the subject of a theory based on our current understanding of microbiology.
Then I would say that your question is badly framed. If you're just asking me whether a particular thing exists, then sure, that's easy. It's measurable. We can see it. Whatever. That isn't, in and of itself, terribly interesting.
I never asked a question?
We know that penicillin kills a number of infections. How it does that is always going to be the subject of a theory based on our current understanding of microbiology.
Thats a different discussion all together, we know for a fact what penicilin is and what it does. How it does it, i do not care to get in to.
Which is all well and good, but which doesn't actually tell us anything terribly exciting.
Indeed. Likewise, how a television can show a picture and how a motor engine can run a machine are other such phenomena.
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Science produces models. It does not produce truth. Are the models functional enough to substitute for truth in the majority of cases? Yes. Does that make them the truth? Well, that depends on how philosophical you want to be and how fundamental your belief that science can produce truth is.
You're either trolling now, or showing your complete lack of scientific knowledge.
Not really, no.
You're either trolling now, or showing your complete lack of scientific knowledge.