This week, drones continue their contribution to art, researchers in Israel want to turn your smartphone into a real-life Tricorder, and more.

The Knockdown Center, an art and event space in Queens, N.Y., has issued an open call for the design of an obstacle course to be traversed by small drones while doubling as an art installation. []

Cellulose nanocrystals derived from agriculture, bio-energy, and paper production waste could be used to strengthen concrete. According to researchers at Purdue University, the additive can improve concrete’s tensile strength by up to 30 percent. []

A hyperspectral imaging camera from Tel Aviv University.
Tel Aviv University

Researchers at Tel Aviv University in Israel are developing a compact hyperspectral imaging camera (previewed above) that can detect the chemical composition of a given object. The device, which captures and identifies the unique electromagnetic signatures of materials, is being designed at a scale that would allow it to be integrated with a smartphone. [Gizmag]

As covered by ARCHITECT earlier this week, researchers at the University of Manchester, in the U.K., have developed an Edison-style LED light bulb that uses graphene in its construction to improve output, longevity, and energy efficiency. It is expected to launch formally later this year. [University of Manchester

Yale researchers have inventoried the supply and concentration of 62 metals in use today. While conventional manufacturing materials, such as aluminum and zinc, are in good supply, those used in the fabrication of electronics, such as gallium, can be harder to source—highlighting the need to bolster electronics recycling programs. [Fast Company’s Co.Exist]