David Shiller

  The 2025 California Energy Code (Title 24) clarifies lighting and control requirements for single-family residential buildings. Here is a summary of the lighting changes: § 110.9: Lighting Controls and Components. All lighting control devices and systems, light sources, and luminaires must meet the applicable requirements of §110.9. § 150.0(k)1A: Luminaire Efficacy. All installed luminaires and light [...]

  The Hong Kong International Lighting Fair (Autumn Edition) and the Hong Kong International Outdoor and Tech Light Expo stand out as Asia’s premier lighting events by combining innovation, sustainability, and cross-industry collaboration under one overarching theme: “Illuminated Designs for a Smarter Future.” What makes the two shows different and interesting are the wide-ranging integration [...]

  This is my latest article in LD+A Magazine’s September issue. Indian Community School’s lighting retrofit stands as a testament to the power of design in educational environments. Located in Franklin, WI, the school’s original lighting, while functional, failed to honor the architectural language of the building and did not meet the dynamic needs of [...]

  The 360 Solar Area Light collection by Landscape Forms, developed in partnership with FlexSol Lighting Solutions, represents the integration of aestetic design and off-grid solar lighting. The solar luminaires are visually distinctive, highly efficient, and resilient across varied environments and climates. Design and Technology 360 Solar features a unique, slim cylindrical profile created by [...]

  Recent trends in U.S. housing construction highlight how single-family housing starts have declined while multifamily construction has grown—primarily in smaller and less densely populated markets—during the second quarter of 2025, according to the NAHB Home Building Geography Index (HBGI). Single-Family Construction Declines Single-family construction experienced declines in nearly every region during Q2 2025, signaling [...]

  Peacock feathers contain reflective microstructures that can amplify light into laser beams when dyed and energized, representing the first example of a natural laser cavity in the animal kingdom. Discovery of Laser Potential Scientists at Florida Polytechnic University explored whether the intricate ordered structures responsible for the feathers’ well-known structural color—vivid blues and greens [...]

  The risk of a recession in September 2025 is elevated, with analysts citing a combination of slow job growth, persistent inflation, and rising tariffs as key factors pushing the U.S. economy toward a downturn. Some, like Moody’s Chief Economist Mark Zandi, suggest the U.S. is “on the precipice” of a downturn, with the period of greatest [...]

  The 2025 California Energy Code (Title 24) clarifies lighting requirements for multifamily buildings. Here is a summary of the lighting changes: Updates mandatory requirements for dwelling units: all installed luminaires and light sources to meet JA8 criteria; removes Table 160.5-A and references. Section 160.5(a)1A Clarifies lighting integral to kitchen range hoods and bathroom exhaust fans do [...]

  Researchers have identified a new cancer treatment approach using molecules dubbed molecular jackhammers (MJHs), which are aminocyanines capable of mechanically disrupting cancer cell membranes through vibronic-driven action (VDA) when activated by near-infrared light. Key Concept: Vibronic-Driven Action VDA operates through subpicosecond whole-molecule vibrations of aminocyanines bound to cell membranes, initiated by targeted light exposure [...]