(UDESC) 2012’s Second Sun 

Earth is believed to be getting a second sun burning in the sky near the end of 2012, as the second biggest star in the universe, Betelgeuse, is dying, which will lead to “multiple days of constant daylight.”

Many ancient cultures ⁴have speculated about the appearance of a second sun and this event appears to ¹tie in very closely with the December 21 2012 predictions.

Betelgeuse is the second ²biggest star in the universe and the eighth ³brightest in the night sky, Scientists ⁵have determined that the star is losing mass at a rapid rate, which indicates it will go supernova very soon.

The light emitted from this exploding star will be so bright that it will appear for a few weeks at the end of 2012 as a second sun in the sky. There may be little if no period of darkness or night according to senior lecturer of physics at the University of Southern Queensland, Brad Carter.

Earth will experience “brightness for a brief period of time for a couple of weeks and then over the coming months it begins to fade and then eventually it will be very hard to see at all,” explained the Australian scientist Brad Carter to news.com.au.

Scientist ⁶have known about this dying star which is 640 light years away from Earth, since 2005. It is believed that as Betelgeuse goes supernova it will not be harmful to Earth. “There will be neutrinos emitted during the supernova process, said University of Minnesota physics professor Priscilla Cushman, but neutrinos, even lots and lots of them, are only weakly interacting, so they won't affect life on earth,” but that is only speculation at this point.

The fact is, we as human beings have never experienced anything like this before so close to our home planet, and to be honest, we just don’t know for sure what this event could bring.

(www.december212012.com) on 30/08/11 

The verb tenses “have speculated” (ref. 4), “have determined” (ref. 5) and “have known” (ref. 6) are:

Em cães labradores, dois genes, cada um com dois alelos (B/b e E/e), condicionam as três pelagens típicas da raça: preta, marrom e dourada. A pelagem dourada é condicionada pela presença do alelo recessivo e em homozigose no genótipo. Os cães portadores de pelo menos um alelo dominante E serão pretos, se tiverem pelo menos um alelo dominante B; ou marrons, se forem homozigóticos bb. O cruzamento de um macho dourado com uma fêmea marrom produziu descendentes pretos, marrons e dourados. O genótipo do macho é

It’s a perilous time to be a statue. Not that it has ever been a particularly secure occupation, exposed as statues are to the elements, bird droppings and political winds.

Just ask Queen Victoria, whose rounded frame perches atop hundreds of plinths across the Commonwealth, with an air of solemn, severe solidity. But in 1963 in Quebec, members of a separatist paramilitary group stuck dynamite under the dress of her local statue. It exploded with a force so great that her head was found 100 yards away.

Today, the head is on display in a museum, with her body preserved in a room some miles away. The art historian Vincent Giguère said that “the fact it’s damaged is what makes it so important.”

There’s another reason to conserve the beheaded Victoria. Statues of women, standing alone and demanding attention in a public space, are extremely rare.

To be made a statue, a woman had to be a naked muse, royalty or the mother of God. Or occasionally, an icon of war, justice or virtue: Boadicea in her chariot in London, the Statue of Liberty in New York.

Still, of 925 public statues in Britain, only 158 are women standing on their own. Of those, 110 are allegorical or mythical, and 29 are of Queen Victoria.

Julia Baird, The New York Times. September 4, 2017. Adaptado

(FUVEST 2018 1ª FASE) Conforme o texto, o grau de importância atribuído à estátua da rainha Vitória, em Québec, reside no fato de a escultura

11,2g de sucata, contendo ferro, reagiram com quantidade suficiente de ácido clorídrico em solução produzindo solução de cloreto de ferro II e gás hidrogênio. O gás formado foi aprisionado em um balão com 1 L de volume, exercendo uma pressão de 2,46 atm, sob temperatura de 27ºC. Considerando-se que somente o ferro que reagiu seja capaz de produzir o gás hidrogênio, é possível afirmar que o teor de ferro, na sucata, é de

Dados:

- massa molar (g.mol^-1) Fe = 56

- constante universal dos gases ideais (R) = 0,082 atm.L.mol^-1 . k