not cientifica meire
TRANSCRIPT
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• Esta é uma viagem fascinante, que começa e termina com distâncias possíveis de serem entendidas, apenas por meio de notação científica.
• Começa com 100 que equivale a 1 metro, distância que vemos com o braço esticado, segue até 10 milhões de anos-luz (1023m) e termina a (10-16m) aqui na Terra.
• As fotos destes slides mostram o que nossa imaginação apenas concebe como possível.
• Preste muita atenção e reflita...
• Boa-viagem.
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1 metro (100m)
Quando olhamos algo com o braço
esticado...
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10 metros (101m)
Vista típica de edifício.
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100 metros (102m)
Vista típica de
helicóptero.
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1 Km (103m)
É possível a prática de pára-
quedismo.
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10 Km (104m)
Os quarteirões mal são vistos.
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100 Km (105m) da superfície.
Cidade de Tallahassee na Flórida USA,
um pouco mais próximo...
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1.000 Km (106m)
Foto característica de
satélite (estado da Flórida USA).
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10.000 quilômetros
(107m)
O Hemisfério Norte da Terra.
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100.000 quilômetros
(108m) A Terra ainda pequena.
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1 milhão de quilômetros
(109m)
Pode ser vista a órbita da Lua.
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10 milhões de quilômetros
(1010m)
Parte da órbita da Terra.
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100 milhões de quilômetros
(1011m)
Órbitas de: Vênus, Terra e Marte
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1 bilhão de quilômetros (1012m)
Órbitas de: Mercúrio, Vênus,
Terra, Marte e Júpiter.
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10 bilhões de quilômetros
(1013m)
Nosso Sistema Solar mais definido.
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100 bilhões de quilômetros
(1014m)
O Sistema Solar começa a aparecer.
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1 trilhão de quilômetros
(1015m)
O Sol um pouco maior.
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1 ano-luz (1016m)
O Sol aparece bem pequeno.
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10 anos-luz (1017m)
Ainda apenas estrelas.
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100 anos-luz (1018m)
Nada além de estrelas.
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1.000 anos-luz
(1019) As estrelas, dez vezes mais
perto.
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10.000 anos-luz (1020m)
Aparecem estrelas de
nossa galáxia.
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100.000 anos-luz (1021m)
Nossa galáxia mal pode ser
vista !
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1 milhão de anos-luz (1022m)
Torna-se visível o expiral.
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10 milhões de anos-luz (1023m) de distância da
Via Láctea.
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• Poderíamos seguir indefinidamente pelo espaço afora, mas está na hora de voltar para casa.
• Vamos acelerar, até nos aproximarmos do nosso planeta, para então penetrar no interior da matéria.
• Apertem o cinto e bom retorno...
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Vamos diminuir a velocidade...
pois estamos nos aproximando da
superfície terrestre novamente
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1 metro (100m)
Quando olhamos algo com o braço
esticado...
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10 centímetros (10-1m)
Pode-se tocar nas folhas.
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1 centímetro
(10-2m)
É possível sentir o cheiro da folha.
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1 milímetro (10-3m)
Os vasos da folha
aparecem.
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100 micra (10-4m) As células praticamente
estão definidas.
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10 micra (10-5m)
As células aparecem.
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1 micron (10-6m).
O núcleo da célula já fica
visível.
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1.000 angstrons (10-7m)
Os cromossomas aparecem.
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100 angstrons (10-8m)
A cadeia de DNA pode ser visualizada.
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1 nanômetro (10-9m)
Os blocos cromossômicos
.
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1 angstron (10-10m)
Nuvens de elétrons do átomo de
carbono. Tudo em nosso
mundo é feito disso...
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10 picômetros (10-11m)
Elétron no campo do
átomo.
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1 picômetro
(10-12m) Espaço vazio entre o
núcleo e as órbitas de elétrons.
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100 fermis
(10-13m)
O núcleo ainda pequeno.
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10 fermis
(10-14m)
O Núcleo de um átomo de Carbono.
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1 fermi (10-15m)
Face a face com um
um Próton.
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100 atômetros (10-16m)
Examinando-se as
partículas ‘quark’.
Fim da viagem.
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• E então?
• Está considerando a si mesmo um grande ou pequeno ser?
• Ainda acha que estamos sozinhos no universo?
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• Elaboração:
• Prof. Meire de Fátima Moralez