Tag Archives: light bulb

The dangers of metaphors when applied to science

Metaphors can be powerful in both good ways and bad. I once read that there was a ‘lighthouse’ metaphor used to explain a scientific concept to high school students which later caused problems for them when they were studying the biological sciences as university students.  It seems there’s research now to back up the assertion about metaphors and their powers. From an Oct. 7, 2016 news item on phys.org,

Whether ideas are “like a light bulb” or come forth as “nurtured seeds,” how we describe discovery shapes people’s perceptions of both inventions and inventors. Notably, Kristen Elmore (Bronfenbrenner Center for Translational Research at Cornell University) and Myra Luna-Lucero (Teachers College, Columbia University) have shown that discovery metaphors influence our perceptions of the quality of an idea and of the ability of the idea’s creator. The research appears in the journal Social Psychological and Personality Science.

While the metaphor that ideas appear “like light bulbs” is popular and appealing, new research shows that discovery metaphors influence our understanding of the scientific process and perceptions of the ability of inventors based on their gender. [downloaded from http://www.spsp.org/news-center/press-release/metaphors-bias-perception]

While the metaphor that ideas appear “like light bulbs” is popular and appealing, new research shows that discovery metaphors influence our understanding of the scientific process and perceptions of the ability of inventors based on their gender. [downloaded from http://www.spsp.org/news-center/press-release/metaphors-bias-perception]

An Oct. 7, 2016  Society for Personality and Social Psychology news release (also on EurekAlert), which originated the news item, provides more insight into the work,

While those involved in research know there are many trials and errors and years of work before something is understood, discovered or invented, our use of words for inspiration may have an unintended and underappreciated effect of portraying good ideas as a sudden and exceptional occurrence.

In a series of experiments, Elmore and Luna-Lucero tested how people responded to ideas that were described as being “like a light bulb,” “nurtured like a seed,” or a neutral description. 

According the authors, the “light bulb metaphor implies that ‘brilliant’ ideas result from sudden and spontaneous inspiration, bestowed upon a chosen few (geniuses) while the seed metaphor implies that ideas are nurtured over time, ‘cultivated’ by anyone willing to invest effort.”

The first study looked at how people reacted to a description of Alan Turing’s invention of a precursor to the modern computer. It turns out light bulbs are more remarkable than seeds.

“We found that an idea was seen as more exceptional when described as appearing like a light bulb rather than nurtured like a seed,” said Elmore.

But this pattern changed when they used these metaphors to describe a female inventor’s ideas. When using the “like a light bulb” and “nurtured seed” metaphors, the researchers found “women were judged as better idea creators than men when ideas were described as nurtured over time like seeds.”

The results suggest gender stereotypes play a role in how people perceived the inventors.

In the third study, the researchers presented participants with descriptions of the work of either a female (Hedy Lamarr) or a male (George Antheil) inventor, who together created the idea for spread-spectrum technology (a precursor to modern wireless communications). Indeed, the seed metaphor “increased perceptions that a female inventor was a genius, while the light bulb metaphor was more consistent with stereotypical views of male genius,” stated Elmore.

Elmore plans to expand upon their research on metaphors by examining the interactions of teachers and students in real world classroom settings.

“The ways that teachers and students talk about ideas may impact students’ beliefs about how good ideas are created and who is likely to have them,” said Elmore. “Having good ideas is relevant across subjects—whether students are creating a hypothesis in science or generating a thesis for their English paper—and language that stresses the role of effort rather than inspiration in creating ideas may have real benefits for students’ motivation.”

Here’s a link to and a citation for the paper,

Light Bulbs or Seeds? How Metaphors for Ideas Influence Judgments About Genius by Kristen C. Elmore and Myra Luna-Lucero. Social Psychological and Personality Science doi: 10.1177/1948550616667611 Published online before print October 7, 2016

This paper is behind a paywall.

While Elmore and Luna-Lucero are focused on a nuanced analysis of specific metaphors, Richard Holmes’s book, ‘The Age of Wonder: How the Romantic Generation Discovered the Beauty and Terror of Science’, notes that the ‘Eureka’  (light bulb) moment for scientific discovery and the notion of a ‘single great man’ (a singular genius) as the discoverer has its roots in romantic (Shelley, Keats, etc.) poetry.

Graphene light bulb to hit UK stores later in 2015

I gather people at the University of Manchester are quite happy about the graphene light bulb which their spin-off (or spin-out) company, Graphene Lighting PLC, is due to deliver to the market sometime later in 2015. From a March 30, 2015 news item by Nancy Owano on phys.org (Note: A link has been removed),

The BBC reported on Saturday [March 28, 2015] that a graphene bulb is set for shops, to go on sale this year. UK developers said their graphene bulb will be the first commercially viable consumer product using the super-strong carbon; bulb was developed by a Canadian-financed company, Graphene Lighting, one of whose directors is Prof Colin Bailey at the University of Manchester. [emphasis mine]

I have not been able to track down the Canadian connection mentioned (*never in any detail) in some of the stories. A March 30, 2015 University of Manchester press release makes no mention of Canada or any other country in its announcement (Note: Links have been removed),

A graphene lightbulb with lower energy emissions, longer lifetime and lower manufacturing costs has been launched thanks to a University of Manchester research and innovation partnership.

Graphene Lighting PLC is a spin-out based on a strategic partnership with the National Graphene Institute (NGI) at The University of Manchester to create graphene applications.

The UK-registered company will produce the lightbulb, which is expected to perform significantly better and last longer than traditional LED bulbs.

It is expected that the graphene lightbulbs will be on the shelves in a matter of months, at a competitive cost.

The University of Manchester has a stake in Graphene Lighting PLC to ensure that the University benefits from commercial applications coming out of the NGI.

The graphene lightbulb is believed to be the first commercial application of graphene to emerge from the UK, and is the first application from the £61m NGI, which only opened last week.

Graphene was isolated at The University of Manchester in 2004 by Sir Andre Geim and Sir Kostya Novoselov, earning them the Nobel prize for Physics in 2010. The University is the home of graphene, with more than 200 researchers and an unrivalled breadth of graphene and 2D material research projects.

The NGI will see academic and commercial partners working side by side on graphene applications of the future. It is funded by £38m from the Engineering and Physical Sciences Research Council (EPSRC) and £23m from the European Regional Development Fund (ERDF).

There are currently more than 35 companies partnering with the NGI. In 2017, the University will open the Graphene Engineering Innovation Centre (GEIC), which will accelerate the process of bringing products to market.

Professor Colin Bailey, Deputy President and Deputy Vice-Chancellor of The University of Manchester said: “This lightbulb shows that graphene products are becoming a reality, just a little more than a decade after it was first isolated – a very short time in scientific terms.

“This is just the start. Our partners are looking at a range of exciting applications, all of which started right here in Manchester. It is very exciting that the NGI has launched its first product despite barely opening its doors yet.”

James Baker, Graphene Business Director, added: “The graphene lightbulb is proof of how partnering with the NGI can deliver real-life products which could be used by millions of people.

“This shows how The University of Manchester is leading the way not only in world-class graphene research but in commercialisation as well.”

Chancellor George Osborne and Sir Kostya Novoselov with the graphene lightbulb Courtesy: University of Manchester

Chancellor George Osborne and Sir Kostya Novoselov with the graphene lightbulb Courtesy: University of Manchester

This graphene light bulb announcement comes on the heels of the university’s official opening of its National Graphene Institute mentioned here in a March 26, 2015 post.

Getting back to graphene and light bulbs, Judy Lin in a March 30, 2015 post on LEDinside.com offers some details such as proposed pricing and more,

These new bulbs will be priced at GBP 15 (US $22.23) each.

The dimmable bulb incorporates a filament-shaped LED coated in graphene, which was designed by Manchester University, where the strong carbon material was first discovered.

$22 seems like an expensive light bulb but my opinion could change depending on how long it lasts. ‘Longer lasting’ (and other variants of the term) seen in the news stories and press release are not meaningful to me. Perhaps someone could specify how many hours and under what conditions?

* ‘but’ removed as it was unnecessary, April 3, 2015.

ETA April 3, 2105: Dexter Johnson has provided a thought-provoking commentary about this graphene light bulb in an April 2, 2015 post on his Nanoclast blog (on the IEEE [Institute for Electrical and Electronics Engineers] website), Note: Links have been removed,

The big story this week in graphene, after taking into account the discovery of “grapene,” [Dexter’s April Fool’s Day joke posting] has to be the furor that has surrounded news that a graphene-coated light bulb was to be the “first commercially viable consumer product” using graphene.

Since the product is not expected to be on store shelves until next year, “commercially viable” is both a good hedge and somewhat short on meaning. The list of companies with a commercially viable graphene-based product is substantial, graphene-based conductive inks and graphene-based lithium-ion anodes come immediately to mind. Even that list neglects products that are already commercially available, never mind “viable”, like Head’s graphene-based tennis racquets.

Dexter goes on to ask more pointed questions and shares the answers he got from Daniel Cochlin, the graphene communications and marketing manager at the University of Manchester. I confess I got caught up in the hype. It’s always good to have someone bringing things back down to earth. Thank you Dexter!

Nano sheds some light on incandescence and a Framing Nano report

The news caught my eye immediately,  ‘Scientists at the University of California Los Angeles (UCLA) have created the world’s smallest incandescent lamp‘. It reminded me of Oliver Saks’ memoir, Uncle Tungsten, which dwelled at length on his uncle’s light bulb factory and their mutual fascination with the filament. Very briefly, the scientists are exploring the boundary between two incompatible theories, thermodynamics and quantum mechanics. There’s more here.

I mentioned the Framing Nano project  in a previous post (July 28, 2008), a European nano governance project. In January 2009, they released a report with an enormous title, ‘Framing Nano Project: A multistakeholder dialogue platform framing the responsible development of Nanosciences & Nanotechnologjes‘. It’s mostly concerned with risk and regulation in Europe but there’s also a bit of information the situation in other parts of the world. There is mention of Canada,

Australia and Canada are also rather active on nanoregulation. Both have important programmes on EHS (Environment, Health and Safety) research and have published in-depth reviews of their regulations to assess eventual limits when dealing with nanotechnology. Even though no specific laws have been set up, the adoption of a precautionary approach principle, when dealing with nanotechnology application, is envisaged in both countries. (p. 4)

The report does not cite source for its contentions about Canada, which means that I’m not sure what to make of it. Last year at the Cascadia Nanotechnology Symposium (March 2008), there seemed to be a general consensus that virtually no analysis had been done or was being done on whether or not existing regulatory frameworks could accommodate nanotechnology. Of course, the problem with these things is that the federal government is huge so it’s possible that none representatives from the National Research Council and other government agencies could be unaware of those developments. If you’re interested in the Framing Nano report, you can read more about it and/or get a copy of it here .