In the basement of the Chemistry Building, Neal Korfhage wields a torch with careful precision. Before him, an Erlenmeyer flask fixed to a spinning lathe is getting an upgrade: Three indents around its base to increase the surface area inside.<\/p>\n
Korfhage, protected by heavy gloves and glasses that block out the intense light of the orange flame shooting from the torch, gently presses a rod into glass so hot it\u2019s become malleable. It bends inward and he quickly treats the groove with flame to smooth out the mark.<\/p>\n
When all three indents are made, he rushes the flask to an oven heated to over 1,000 degrees Fahrenheit where it will be allowed to cool slowly over the next several hours. If it cools too quickly, the glass will crack under thermal strain. Once the piece is finished, it will head back up to the chemistry labs on the floors above.<\/p>\n
Korfhage is 51ÁÔÆæ\u2019s staff glassblower. Working out of the Department of Chemistry, he not only repairs broken glassware from the labs above his workshop, but also creates custom equipment for the university\u2019s chemists, physicists, and biologists.<\/p>\n
\u201cThe scientists know what they want \u2026 and they come to us and just say, \u2018I need this thing.\u2019 And we say, okay!\u201d he joked.<\/p>\n
Glass is the ideal material for those scientific experiments, he added. It\u2019s mostly inert and barely reacts with anything, outside of hydrofluoric acid.<\/p>\n
Glassblowing is an art, but Korfhage mixes it with science. He is what\u2019s called a scientific glassblower, which differs from artistic glassblowers who might make decorative pieces like stemware or chandeliers. Scientific glassblowing is a niche field where craftsmen make creations specifically for use in science research. That means anything from flasks and beakers to the vacuum chamber that Korfhage custommade for some of the university\u2019s physicists.<\/p>\n
\u201cI like to think of it as a machining support industry, mostly to chemists,\u201d he says. \u201cIt branches out into other sciences as well. Biochemistry, for example, doesn\u2019t like oxygen very much because it reacts with everything. We want to prevent that, so we make vacuum systems with an ultra-low vacuum.\u201d<\/p>\n
When he says \u2018we,\u2019 Korfhage is referring to a handful of artisans around the United States. Most are employed in scientific manufacturing; Vineland, New Jersey, is something of a hub for glassmaking companies. But the industry has been shrinking, Korfhage says, with companies consolidating or being bought out since glassblowing\u2019s heyday post- World War II.<\/p>\n
Even rarer are glassblowers like Korfhage himself, who work and support research within a university.<\/p>\n
\u201cWisconsin has two, including me,\u201d he says. \u201cI think there\u2019s probably about, throughout the whole country, eight or 10 university glassblowers.\u201d<\/p>\n
And that\u2019s a shame, he adds, because a good glassblower can end up saving their institution a lot of time and money. Korfhage holds up a broken condenser that needs repairs as an example.<\/p>\n
\u201cOne of these, brand new, is over $1,000,\u201d he says, pointing out the crack on a component inside the hollow glass tube. \u201cThis is made in Japan. That takes a lot time for shipping (for a replacement), whereas I can fix this in a couple of business days.\u201d<\/p>\n
Korfhage learned glassblowing at his father\u2019s knee \u2013 or rather, his furnace. The elder Korfhage was also a glassblower who built his own workshop as an addition on their house.<\/p>\n
\u201cI would watch him as a kid \u2013 I would put on the safety glasses that filter out the bright orange light and I would just watch him, fascinated by him,\u201d Korfhage recalls. He smiles as he tells of his first glassblowing project: Learning to make old-fashioned perfume bottle tops through a process called \u2018tooling.\u2019<\/p>\n
When he was 15, Korfhage\u2019s father took his son on as an apprentice. Korfhage later attended Salem Community College in Carney\u2019s Point, New Jersey \u2013 his father\u2019s alma mater \u2013 where he began working toward his two-year applied science degree. Salem Community College offers the nation\u2019s only scientific glassblowing program of study.<\/p>\n
\u201cIronically, I did not graduate,\u201d Korfhage admits. Instead, representatives from Aldrich Chemical (now Millipore Sigma) in Milwaukee swung by the college during his third semester and interviewed the novice glassblowers to fill four positions in their 12-man shop. Korfhage got an offer.<\/p>\n
\u201cDo I finish the Salem program and miss the opportunity of a lifetime to have a really good job before I even graduate, or do I, for the sake of the education, graduate and miss out on the job?\u201d he muses. \u201cI chose the job. Education is supposed to lead to the job. All I did was take a onesemester shortcut.\u201d<\/p>\n
But soon after he arrived in Milwaukee, 51ÁÔÆæ popped up on his radar. Korfhage met the university\u2019s previous glassblower at an industry conference and liked the idea of being a glassblower in higher education.<\/p>\n
\u201cEleven years goes by and nothing. I\u2019m working at Aldrich and it\u2019s a great company for me. Then I heard from my dad who heard that the position was open. By the time I had found out about it, it had been open for a whole year,\u201d Korfhage laughs. \u201cI talked to my dad on the phone: \u2018Neal, I want you to get your r\u00e9sum\u00e9 right now and drive to 51ÁÔÆæ right now and submit your r\u00e9sum\u00e9 right now.\u2019 And that\u2019s what I did.\u201d<\/p>\n
He\u2019s been at 51ÁÔÆæ for 15 years.<\/p>\n
Korfhage\u2019s lab is dominated by the lathe and torch set up at the front of the room. Beyond it are work tables and shelves upon shelves of boxes filled with glass tubing of various sizes. Rather than make his own glass, Korfhage uses the tubing for repairs and custom projects. In another room off the main workshop sits the oven where the Erlenmeyer flask is now cooling.<\/p>\n
On one wall there\u2019s an old Science Bag poster featuring Korfhage and his boss, associate professor of chemistry Joseph Aldstadt. The two are dressed in period clothing in their photo; the show covered the historic relationship between scientists and glassblowers, especially as it concerned the discovery of oxygen in the 1770s.<\/p>\n
If it sounds like Korfhage is having fun, it\u2019s because he is. 51ÁÔÆæ is fulfilling in a way that his commercial work at Aldrich Chemical wasn\u2019t.<\/p>\n
\u201cHere, I work with the people that I\u2019m helping,\u201d he says. \u201cI see the people that I\u2019m helping, and if someone needs something special made, we can collaborate on it together.\u201d<\/p>\n
That\u2019s definitely a reason to raise a glass.<\/p>\n
By Sarah Vickery<\/strong>, College of Letters & Science<\/small><\/p>\n","protected":false},"excerpt":{"rendered":" In the basement of the Chemistry Building, Neal Korfhage wields a torch with careful precision. Before him, an Erlenmeyer flask fixed to a spinning lathe is getting an upgrade: Three indents around its base to increase the surface area inside. …<\/p>\n","protected":false},"author":28112,"featured_media":16939,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","uwm_wg_additional_authors":[]},"categories":[1715],"tags":[1861],"class_list":["post-16917","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-in-focus-2021","tag-november"],"yoast_head":"\n