Adding pigment to cement is one way to produce colored concrete. Researchers in China and Morocco showed that the content and purity of the pigment can have adverse effects on the cement’s properties.
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Despite concrete being the second most consumed material in the world, the global construction industry currently is experiencing a cement shortage due to the COVID-19 pandemic. Learn how a recent decision by the Swedish Supreme Land and Environmental Court may complicate Sweden’s cement production further in the coming months and years.
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Lactose-free milk usually is created is by adding the enzyme lactase to regular milk—but filtration is another possible method that is gaining more attention. Researchers in Japan and Mexico developed new graphene oxide membranes that appear to filter lactose out of milk better than current commercial membranes.
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The realism and popularity of superheroes present a great opportunity to teach science through a fun and engaging lens. UC Davis associate professor Ricardo Castro uses superheroes to inspire learning in both the classroom and laboratory, including through a new initiative called Engineering Superheroes.
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In celebration of the Bulletin publishing Volume 100 this year, an ongoing column has looked at the history of the Bulletin by decade. Today’s CTT features a list published several times in the 1950s and 1960s that compiled industrial and educational films on ceramics and related topics.
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In recent years, China has undergone a glass bridge building boom as local authorities seek to entice tourists. Despite the brittleness of glass, civil engineers explain how careful design can ensure the safety of bridges built from this material.
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Despite being on the market for decades, braille displays remain very costly, typically in the range of several thousand dollars. Dot Incorporation, a company cofounded by South Korean entrepreneur Eric Ju-Yoon Kim, created a smartwatch featuring a braille touchpad that only costs a few hundred dollars—and the technology can be applied to other devices as well.
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To celebrate World Oceans Day, which took place June 8, we’ve collected some of our recent CTTs on challenges and solutions related to the world ocean.
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Gorilla Glass is the go-to cover screen material for many big phone brands. The recently released iPhone 12 and iPhone 12 Pro, however, use a new glass-ceramic material called Ceramic Shield developed by Apple and Corning.
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The heat island effect is a major problem for many big cities, and relying on air conditioning for cooling can be expensive and increase air pollutants. Several initiatives in Dakar, the capital of Senegal, look to combat the heat using environmentally friendly and sustainable solutions.
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