Tag Archives: creativity

Robots with a delicate touch

whitesgroup demoCan a robot pick up an egg or a baby cactus without damaging either? If it is a conventional ‘hard’ robot then the answer is almost certainly ‘no’. But if it is a ‘soft’ robot then the answer is definitely ‘yes’. They can pick ripe tomatoes from the plant, too. And play the piano with a light touch.

These are all examples used by Professor George Whitesides to illustrate the capability of soft robots during a lecture that I attended last week. The occasion was a scientific discussion meeting on Bio-inspiration of New Technologies which was held to celebrate 350 years to publishing the Philosophical Transactions of the Royal Society. While I was in London listening live to Prof Whitesides and the other eight speakers, other people were listening via video links to Bangalore, India and Sao Paulo, Brazil.

Professor Whitesides’ ingenious robots have ‘fingers’ built from the same soft rubber that is used in implants. They are constructed with a solid layer on one face that is curled around the object being picked up by the inflation of compartments on the reverse face. The inflation of the compartments on the reverse face cause the face to lengthen and the ‘finger’ bends to accommodate the change in length. Careful design of the inflated compartments allows the fingers to conform to the shape being picked up and the use of microfluidics ensures it is not damaged.

Professor Whiteside identified star fish as the source of inspiration for the design of his soft robots. I don’t feel that this short piece has done justice to his work. If, nevertheless, you feel inspired to work for him then there’s probably a queue and since he is professor at Harvard it is almost certainly a long one. His research group has also spun out a company, Soft Robotics Inc. so you could buy some soft robots and explore their capabilities…

Engineers sustain society

Tim Butterfield receiving his prize from Incorporation of Hammermen Deacon Professor David Harrison

Tim Butterfield receiving his prize from Incorporation of Hammermen Deacon Professor David Harrison

A few weeks ago I wrote about tag-lines for promoting engineering [see post entitled ‘Life takes engineering‘ on April 22nd, 2015]. A young undergraduate student, Tim Butterfield from the University of Sheffield has produced possibly the best one that I have come across: ‘Engineers sustain society’ in his outstanding video made to complement his awarding winning essay on the subject ‘Can engineers make a beneficial contribution to society?’ It won first prize at the 20th Anniversary Student Awards of the UK Engineering Professors’ Council last month.

Prince Philip wrote on almost the same subject earlier this year in the New Scientist. He said that ‘engineering has made a greater positive difference to human life than almost any other human endeavour’.  I don’t think that’s an exaggeration but then I am biased. So, ‘engineers sustain society’ is a good paraphrase.

Now watch Tim’s short video.

Life takes engineering

changingconversationTeachers change lives.  Doctors cure, nurses care. Firefighters are heroic.  What do engineers do?  Engineers shape the future.

Most of the things that engineers do are taken for granted.  I would like to think that we are so good at it that people don’t notice anymore.  Occasionally things go wrong and we get the blame but almost everything you do in life from the moment you are born is shaped by engineering.  A structural engineer designed the structure in which you were born, a team of mechanical engineers designed the vehicle you made your first journey in, if you needed medication a team of chemical engineers designed the factory that produced them and so on through life.  You can repeat the process for an average day – who designed the production system that made the bed you slept on, the alarm clock that woke you, runs the utilities that provided hot water to wash in, designed the supply chain that delivered food to your breakfast table and so on through the day?  Yes, engineers.

Maybe engineering is so ubiquitous that it is difficult to grasp its essence.  The engineering community spends hundreds of millions of dollars annually to promote public understanding of engineering with little measurable impact on young people, according to the US National Academy of Engineering.  Their report called ‘Changing the Conversation‘ recommends using four tag-lines to promote engineering:

1. Engineers make a world of difference.

2. Engineers are creative problem solvers.

3. Engineers help shape the future.

4. Engineering is essential to our health, happiness and safety.

About 40% of their survey groups found these tag-lines ‘very appealing’.  So perhaps none of them really resonated.  Oh, but now I am being an engineer and analysing the data in order to make a very rational, reasoned decision when instead I should be employing my creative, imaginative side.  Maybe we are back to poetaster engineers [see my posting on ‘Poetasting engineers‘ on March 4th, 2015].  As a profession we are not good with words [see last week’s posting entitled ‘Reader, Reader, Reader] and cannot dream up a catchy memorable tag-line.

What do you think?

Reader, reader, reader!

annegreeneAt this time of year many university students are labouring over their dissertations. I have commented before about the difficulties that engineers seem to have in expressing themselves eloquently. So, I thought that I should offer some simple guidance.

The title of this post is the first piece of guidance. Real estate agents like to use the adage ‘location, location, location’ when talking about the relative importance of the features of properties. For technical writing it can be adapted to ‘reader, reader, reader’ – in other words, you have to think about your reader whenever you are writing.

There are lots of books about writing, and although some are admirably short, most engineers and engineering students do not read them. Maybe there is a clue there as to why engineers tend not to write material that is read by others. One of the shortest and most concise of these books is by Anne Greene called ‘Writing Science in Plain English’. I have summarised it below as a simple mnemonic:

R – Reader, reader, reader. Ok, we have done this one already. Anne prefers ‘audience, audience, audience’ (page 36) but that’s American and doesn’t work as well as a mnemonic.

E – [readers] Enjoy a story with a subject that takes rather than receives actions. See Anne on story-telling in science writing (page 12) and on using active rather than passive verbs (page 22).

A – [readers] Appreciate short, non-technical words. See Anne on using short, old words which are used frequently in spoken English (page 30). Introduce technical words slowly and only if absolutely necessary (page 36).

D – [readers] Digest new information when it follows old in sentences that vary in length. See Anne on providing familiar information at the start of a sentence and building on it through the sentence (page 52). But, don’t write strings of long sentences (more than 30 words); see Anne on varying sentence length (page 63).

E – [readers] Expect paragraphs to have a consistent structure with issue, development and conclusion. See Anne on paragraph structure and making the point at the end of the introductory paragraph(s) (page 71).

R – [readers] Remember the last thing that they read, so build arguments progressively from the least to the most important evidence. See Anne on developing persuasive arguments (page 78).

Finally, many of the technical reports that I am expected to read do not appear to have been read by the author because they are littered with typographical, grammatical and stylistic errors. So Read, Edit, Add and Delete (READ).

By the way, Anne also advises that we use ‘parallel lists’ (see page 60). By which she means lists in which the items have a consistent structure, such as in my mnemonic ‘READER’ above.

Sources:

Greene, A.E., Writing science in plain English, The University of Chicago Press, Chicago, 2013.

Williams, J., Style: toward clarity and grace, The University of Chicago Press, Chicago, 1995.