He squatted to get a closer look, careful not to touch the still hot metal.
Phototypesetting could use a photographic image of fonts, rather than hot metal, to create the printing layout.
In the early part of the 20th century, typesetters were based on a system of injecting hot metal into a type mold.
Although the differences between hot-metal technology and photography seem clear to outsiders, the dominant manufacturers in hot-metal typesetting struggled for years to develop new photo typesetters.
In fact, initially, they designed their new lines of photo typesetters on the old, hot-metal architecture and tried to incorporate elements of the hot-metal process into the phototypesetting.
Such concentrations are usually created by geological events, such as volcanic eruptions and tectonic plate shifts that steer hot metal-bearing fluids into upper, accessible parts of the Earth's crust, erosion, or massive sedimentary movements.
As for the crudities of hot-metal typesetting and letter-press printing, all these have long been superseded by electronic setting (in which a 1970s managing director, Ian Trafford, was a pioneer, and made The Economist one too), and by the stunning quality of modern offset printing.
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Conventional plasma torches employ such hot plasma to cut metal.
Even the spent fuel that has accumulated over 30 years of use is so radioactive it is hot enough to burn metal containers unless actively cooled 100% of the time.
But the yellow metal will be a hot topic in the next 24 months.
When a suitable kick is applied, however, a stream of hot electrons does indeed flow from the metal to the superconductor, and the laws of physics are boringly preserved.
You can sometimes see bright flashes - that's actually hot enough to vaporise very small amounts of metal.
Within the steel sector, one company that traders should keep an eye on is Nucor, a producer of about 25 million tons of steel annually, including hot- and cold-rolled steel, steel joists and metal buildings.
We were each given a metal pail and a gigantic ladle for dishing out a hot soup of water, offal and bones.
Coming a long way from its original shade of metal grey, duct tape now comes in more than 200 colours and patterns ranging from hot pink to zebra stripes.
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