DIY
Off-Grid ESP32 Flood-Stage Sensor: Cutting Standby From 20 mA to Under 100 µA on a $70 Solar Node
Full open-hardware build: ultrasonic stage sensing, LiFePO4 pack, and the dev-board parasitic draw that wastes 89% of a node's daily energy.
Smart City
Quantum
How AT&T Uses D-Wave Quantum Annealing and Agentic AI to Optimize Network Operations in Under 15 Seconds
AT&T used D-Wave quantum annealing and agentic AI to cut network optimization from one hour to under 15 seconds.
Cybersecurity
Essex Fertilizer Plant Explosion Exposes Urgent Need for IoT Safety Systems in Chemical Production
Essex fertilizer blast proves reactive safety fails. IoT sensors enable predictive protection.
Aerospace
EHang's EH216-S and VT35: Inside the World's Only Certified Pilotless Passenger eVTOL Program
EHang holds the world's only certified pilotless passenger eVTOL. We assess the EH216-S, the VT35, and whether autonomy can scale beyond China.
Water
How to Build a Self-Contained Wastewater Treatment IBC Tote System: A 150 GPD Design Guide
A hybrid MBBR plus UF train fits a 275-gal IBC footprint, draws 2 kWh/day, and meets NSF/ANSI reuse grade. Aeration energy is the binding constraint.
Technoagriculture
How Fog Computing Powers Remote Agricultural IoT, Smart Farms, and Automated Indoor Farming
Fog computing helps remote farms process sensor data locally, reduce cloud dependence, and maintain resilient IoT automation.
Futurism
Compact Fusion Microreactors: The Strategic Case for Distributed and Mobile Energy Infrastructure
Compact fusion microreactors could transform distributed energy, from Arctic outposts to military bases. Here's the strategic case for engaging now.
Smart City
Perovskite-Silicon Tandem Cells and the Economic Viability of Building-Integrated Photovoltaics: A Strategic Technology Assessment
Perovskite-silicon tandem solar is entering BIPV markets, but cost, lifetime (T80), and policy will determine real adoption.
Aquaponics
Closing the Loop: The Strategic Case for Self-Sustaining Perpetual Aquaponics Systems
A rigorous analysis of perpetual aquaponics: the biology, engineering, economics, and policy implications for a closed-loop food future.
Smart City
Digital Twin Ecosystems: Real-Time Simulation of Cities, Climate, and Infrastructure at Planetary Scale
Digital twin ecosystems use real-time data to simulate cities, climate, and infrastructure, enabling predictive modeling and system-level decision-making.
Biology
Closed-Loop Urban Biomanufacturing: Engineering Self-Sustaining Production Systems for Smart Cities
Transform urban waste into resources with synthetic biology. Build self-sustaining circular economies in smart cities for resilient futures.
Computing
Quantum Computing in Smart Cities: 7 High-Impact Use Cases for 2035
How will quantum computing revolutionize smart cities by 2035? Explore high-impact use cases for traffic, energy, and security.