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Author: Matt McGowan

How does 3D printing work?

Answered by Wenchao Zhou. 3D printing, also known as additive manufacturing, is a process of joining materials to make objects from models, usually layer upon layer. The core idea of joining materials together to make objects is ancient. Some examples include various adhesives, bricks and mortar for building houses and even Lego blocks. 3D printing digitizes this idea by using a computer to control the joining of materials based on the digital model. The first 3D-printing technology, called stereolithography, was invented by Charles Hull in 1984. Hull worked for 3D Systems. His technology used a computer to control the...

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What is a Carbon Footprint?

Walking or riding a bicycle helps reduce the carbon footprint. Answered by Marty Matlock. The conversation about human impacts on climate change often leads to discussions of our carbon footprint. All human activities generate carbon emissions; the more prosperous we become, the more greenhouse gasses we tend to emit. The amount of greenhouse gasses we emit on an annual basis is often referred to as our carbon footprint. We can make decisions at the personal, family and community level that reduce our carbon footprint. In general, the largest contributor to our carbon footprint is energy used, especially electricity in...

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Violin Professor Discusses Florence Price Preservation Project in ‘New Short Talks From the Hill’

Short Talks From The Hill, a podcast from the University of Arkansas, highlights research and scholarly work across campus. Each segment features a university researcher discussing his or her work. DeLani Bartlette: Hello and welcome to Short Talks From the Hill, a podcast from the University of Arkansas. My name is DeLani Bartlette. On this episode, Er-Gene Kahng, graduate chair of violin in the music department discusses her work on the Florence Price Preservation Project, which aims to bring previously overlooked composer’s works to a wider audience. Welcome Er-Gene. Er-Gene Kahng: Thank you. DB: So, would you talk a...

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Searching For Planet X; New Podcast Features Astrophysicist Daniel Whitmire

Short Talks From The Hill, a podcast from the University of Arkansas, highlights research and scholarly work across the campus. Each segment features a university researcher discussing his or her work. Bob Whitby: Hello and welcome to Short Talks from the Hill a podcast from the University of Arkansas. my name is Bob Whitby, a science writer at the university. On this episode, Daniel Whitmire, an instructor in the mathematics department and a retired astrophysicist, discusses his research on Planet X and his theory of how it causes mass extinctions. Thanks for joining us. Daniel Whitmire: Sure, my pleasure. BW: Daniel,...

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