Questões, Gabaritos e Provas Comentadas:

Resolução da questão 20 de Inglês do ITA 2017
Resolução da questão 20 de Inglês do ITA 2017

(ITA - 2017 - 1ª FASE)


Tiny rockets are going to be sent into space to study the far universe in the most ambitious space exploration project in history.

Scientists including Stephen Hawking and backers such as internet investor Yuri Milner and Mark Zuckerberg will send "nano craft" deep into space to explore the most remote regions that humans have ever seen, by far. 

The hugely ambitious project could reveal deep secrets of the universe and will allow people to photograph one of the most likely places to hold life on other worlds.

Professor Hawking said at the event: "What makes us unique is transcending our limits. Gravity pins us to the ground, but I just flew to America.

"How do we transcend these limits? With our minds and our machines.

"The limit that confronts us now is the great void between us and the stars. But now we can transcend it, with light1 beams, light2 sails, and the lightest3 spacecraft ever built. Today we commit to this next great leap into the cosmos, because we are human and our nature is to fly."

The Starshot Project hopes to get the tiny robots out to the Alpha Centauri star system, 25 trillion miles away.

Getting there through normal means would take 30,000 years – but the new project hopes that using the tiny rockets will allow them to get there in just 20.

Scientists think that the Alpha Centauri system might well have an Earth-like planet that could be found in its "habitable zones". The craft will be able to take pictures of those – a potential way that they might find life on other worlds.

The crafts will be "gram-scale nano craft", according to Yuri Milner, which will make their way through space using a "sail pushed by a light beam". Their design will allow them to fly at 25 per cent of light speed.

Those craft will be able to send back images of possible planets and other scientific data, according to the scientists behind it.

"The human story is one of great leaps," Dr Milner said. "Today we are preparing for the next great leap – to the stars."

"Can we literally reach the stars, and can we do it in our lifetime?"

The tiny rockets are made up of computers that can be mounted to a tiny "wafer". Shrinking computer components mean that all of the necessary parts – cameras, thrusters, power supply and navigation equipment – can all be mounted on a tiny plate that will be a fully functional space probe.

Before those are built, the project will have to create all of the important parts on the ground. That includes the construction of a light-beamer that can power the rockets and a "mothership" that will be able to carry them all out into space and launch them.

Because of economies of scale and the decreasing price of computer components, the team will eventually be able to send out the rockets for just a few hundred thousand dollars, they said.

Fonte: http://www.independent.co.uk/news/science/starshot-project-stephen-hawking-and-mark-zuckerberg-to-send-tiny-rockets-to-alpha-centauriin-most-a6981101.html (acesso em 03/05/2016).

Na frase "But now we can transcend it, with light beams, light sails, and the lightest spacecraft ever built." (ref. 1, ref. 2, ref. 3), é correto afirmar que

há 10 dias
Resolução da questão 44 de Inglês da AFA 2015
Resolução da questão 44 de Inglês da AFA 2015

(AFA - 2015)


“There is no future in any job. The future lies in the person who holds the job.” – George W. Crane

One of my primary complaints with higher education is that they tend to prepare students for jobs of the past. Similarly, the best paying jobs of the future are all jobs that currently exist today. Many of them1 will still exist in the future, but with some changes as technology and communication systems make their impact 

As a rule of thumb, 60% of the jobs 10 years from now haven’t been invented yet. With that in mind, I’ve decided to put together a list of some jobs that will be in high demand in the future.

Jobs before 2020

Many of the changes we see today will cause new jobs to materialize quickly. This first section deals with new positions that will likely2 be developed within the next 10 years.

3D printing engineers – Classes in 3D printing are already being introduced into high schools and the demand for printer-produced products will rise3 quickly. The trend will be for these worker-less workshops to enter virtually different fields, at the same time, driving the need for competent technicians and engineers to design and maintain the next wave of this technology.

Nano-medics – Health professionals capable of working on the nano-level, both in designing diagnostics systems, remedies, and monitoring solutions will be in high demand.

Organ agents – The demand for transplantable organs is exploding4 and people who can track down and deliver healthy organs will be in hot demand. 

Octogenarian service providers – As the population continues to age5 we will have record numbers of people living into their 80s, 90s, and 100s. This growing group of active oldsters will provide a demand for goods and services currently not being addressed in today’s marketplace.

Jobs in 2030 and beyond

A number of technologies currently on the drawing board will require a bit longer lead time before the industry comes into its own. Here are a few examples of these kinds of jobs:

Body part & limb makers – The organ agents listed before will quickly find themselves out of work as soon as we figure out how to efficiently grow and mass produce our own organs from scratch.

Earthquake forecasters – While scientists are developing skills to work with nanoscale precision on the earth’s surface, the best we can know about below the surface is blindfolded guesswork done with 100-mile precision. What we don’t know is literally killing us – over 226,000 killed6 in 2010 alone. But that will change over time as we begin to understand the inner working of the earth and accurately forecast when the next big quakes are about to hit.

Heavy air” engineers – Compressed air is useful in a wide variety of ways. However, we have yet to figure out how to compress streams of air as they pass through our existing atmosphere. Once we do, it will create untold opportunity for non-surface based housing and transportation system, weather control, and other kinds of experimentation.

Final thoughts

The jobs and occupations listed above are just scratching the surface7. This list is intended to help stretch your imagination and start you down a path of imagining your own future.

(Adapted from http://www.futuristspeaker.com/2011/11/55-jobs-of-the-future)

“Many of them will still exist in the future, but with some changes as technology and communication systems make their impact.” The underlined word (reference 1) refers to

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