Researchers in Taiwan have discovered that gold nanoparticles can create luminescence in tree leaves, opening the possibility of glowing trees that cold act as streetlights.
This research could create an energy-efficient way to light streets.
"Upon learning of the discovery, Assistant Prof. Shih-Hui Chang said: 'Light emitting diode (LED) has replaced traditional light source in many display panels and street lights on the road. A lot of light emitting diode, especially white light emitting diode, uses phosphor powder to stimulate light of different wavelengths. However, phosphor powder is highly toxic and its price is expensive. As a result, Dr. Yen-Hsun Wu had the idea to discover a method which is less toxic to replace phosphor powder which can harm human bodies and cause environmental pollution. This is a major motivation for him to engage in the research at the first place.'"
FULL STORY: Gold nanoparticles turn trees into streetlights
USGS Water Science Centers Targeted for Closure
If their work is suspended, states could lose a valuable resource for monitoring, understanding, and managing water resources.
‘Smart Surfaces’ Policy Guide Offers Advice for Building and Maintaining Urban Tree Canopies
Healthy, robust tree canopies can reduce the impacts of extreme heat and improve air quality.
Alabama School Forestry Initiative Brings Trees to Schoolyards
Trees can improve physical and mental health for students and commnity members.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
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The Five Most-Changed American Cities
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San Diego Adopts First Mobility Master Plan
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Housing, Supportive Service Providers Brace for Federal Cuts
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Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement
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Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
New York City School Construction Authority
Village of Glen Ellyn
Central Transportation Planning Staff/Boston Region MPO
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions