What about "grey goo"?

A) Current, excluded, self-replicating, fastened down, perceived, capability, within, application, urgent, priority

The dangers of (_____) nanobots — the so-called grey goo — have been widely discussed, and it is generally (_____) that molecular manufacturing is uncomfortably close to grey goo. However, the proposed production system that CRN supports does not involve free-floating assemblers or nanobots, but much larger factories with all the nanoscale machinery (____) and inert without external control. As far as we know, a self-replicating mechanochemical nanobot is not (_____) by the laws of physics, but such a thing would be extremely difficult to design and build even with a full molecular manufacturing (____). Fiction like Michael Crichton's Prey might be good entertainment, but it's not very good science.

How soon will molecular manufacturing be developed? Based on our studies, CRN believes that molecular manufacturing could be successfully developed (____) the next ten years, and almost certainly will be developed within twenty years.

Shouldn't we be working on (____) problems like poverty, pollution, and stopping terrorism, instead of putting money into these far future technologies? We should do both! Development and (_____) of molecular manufacturing clearly can have a positive impact on solving many of today's most (____) problems. But it's equally clear than MM can exacerbate many of society's ills. Knowing that it may be developed within the next decade or two (which is not "far future"), makes preparation for MM an urgent (____).

2. Match the columns

1.to impact	a. down
2.to fasten	b. of
3.to develop	c. into
4.instead	d. on
5.to work	e. within
6.to be good	f. on
7.to put money	g. in

2. Make up the sentences.

1. is / complex / a / fabricating / materials / process

2. have / lately / machining / methods / been / developed

3. a /depend / its / the / properties /on / of / working / ways / metal

4. coating / conditions / the / special / required /are / for / metals

5. ills / MM / exacerbate / of / many/can / of society's

6. should / be /we / problems / working / current / on

7. two / it /or / be / may/ developed / the / within / decade / next

2. Fill in the gaps with the following words or word combinations.

developed / excluded / molecular manufacturing / urgent / grey goo / application / nanobots

1. The proposed production system does not involve free-floating assemblers or____________.

2. ____________is uncomfortably close to grey goo.

3. Molecular manufacturing could be successfully _________within the next ten years.

4. Development and ______of molecular manufacturing clearly can have a positive impact on solving many of today's most urgent problems.

5. The dangers of self-replicating nanobots — the so-called______— have been widely discussed

6. A self-replicating mechanochemical nanobot is not _____by the laws of physics.

7. We should make preparation for MM an _______ priority.

2. Answer the following questions.

1. What is close to grey goo?

2. What is grey goo?

3. Can you explain in Russian the word nanobot?

4. How soon will molecular manufacturing be developed?

5. Should we put money into future technologies?

6. Can development and application of molecular manufacturing have a positive impact on solving many of today's most urgent problems?

2. Match the words together to get a word combination.

1. laws of a. system

2. urgent b. technologies

3. future c. physics

4. grey d. priority

5. production e. goo

2. Solve a rebus.

1. Technolo*y

2. Ce*tainly

3. Sci*nce

4. Capability*

5. Ur*ent

6. Pri*rity

7. S*ciety

2. State what part of speech is used in these sentences.

1. The dangers of self-replicating nanobots — the so-called grey goo — have been widely discussed.

2. It is generally perceived that molecular manufacturing is uncomfortably close to grey goo.

3. The proposed production system does not involve free-floating assemblers or nanobots.

4. Development and application of molecular manufacturing clearly can have a positive impact on solving many of today's most urgent problems.

5. Knowing that nanotechnology may be developed within the next decade or two makes preparation for MM an urgent priority.

2. Discuss the question with your partner.

What are the most urgent problems of modern world?

1. P..v…r……y

2. P…ll…t…….n

3. T…r….m

4. Fut……e t…ch…l…..gies