Thunderstorm Calculator vs pollen.ny

This application calculates the distance of a thunder storm by measuring the time between a lightning and the corresponding thunder. How to use: - When you see the lightning press the 'Lightning' button. - Wait until you hear the thunder and press the 'Thunder' button. - Tap the distance to toggle between metric and imperial units. - With the help of the history list you can see whether the storm comes closer and moves away. Background: The speed of light is much faster than the speed of sound. By measuring the time between the lightning and corresponding thunder one can easily approach the distance by multiplying the duration with the speed of sound. Apple Watch version: - distance calculation - history list - metric and imperial units - has a Check for a quick start

Pollen.ny helps you track pollen in and around New York City using real research data and live forecast signals. Follow daily pollen counts from Fordham University’s two monitoring sites, explore seasonal trends, and compare local observations with forecast data in a clear, interactive interface. Features: - Fordham Research Data Daily pollen counts from Louis Calder Center (Armonk) and Lincoln Center (NYC), including type breakdowns. - Google Forecast Integration Multi-day pollen outlook for Tree, Grass, and Weed categories. - Interactive Heatmap Explore regional pollen intensity with map overlays and location markers. - Historical Trends Visualize patterns over time with interactive charts and year-over-year comparisons. - Smart Alerts Set personal thresholds and get notified when pollen levels rise. - Data Source Comparison Compare observed counts and forecast signals to better understand current conditions. - Built for clarity Designed for students, researchers, and allergy-conscious New Yorkers who want a cleaner way to explore pollen data. Data sources Fordham University pollen monitoring data (student-collected and analyzed) Google Pollen API forecast data