Ecology

Calculate Mixed Liquor Volatile Suspended Solids in wastewater treatment.

Perform key process control calculations for wastewater treatment, such as BOD loading and F/M ratio.

Calculate the detention time or hydraulic retention time for a tank or basin, crucial for water treatment processes.

Calculate the Hydraulic Retention Time (HRT), a key parameter in environmental engineering for designing reactors and settling tanks.

Find the current moon phase or the phase for any given date. A great tool for astronomers, gardeners, and the curious.

Estimate the age of a tree without cutting it down by using its species and diameter. A useful tool for arborists and nature lovers.

Estimate the height of a tree using simple trigonometry. Measure the distance to the tree and the angle to its top to calculate its height.

Calculate the number of trees that can be planted per acre based on the desired spacing between trees and rows.

A conceptual tool to calculate the estimated material and cost for building a very large-scale wall, inspired by border wall discussions.

Compare the environmental impact of different shopping bags (plastic, paper, cotton) to make a more sustainable choice.

Estimate and compare the carbon footprint of a real versus an artificial Christmas tree to help you make a greener holiday decision.

Estimate the carbon footprint associated with cryptocurrency transactions, providing insight into the environmental impact of digital currencies.

Calculate the carbon dioxide (CO2) emissions generated by your air travel. Understand and offset the environmental impact of your flights.

Compare the carbon footprint of using paper towels versus electric hand dryers to see which is the more environmentally friendly option.

Explore the Kaya Identity, an equation that breaks down total CO2 emissions into components of population, wealth, energy efficiency, and carbon intensity.

Estimate the environmental footprint (carbon and water) of your meat consumption to understand the impact of your dietary choices.

Estimate your annual plastic consumption to understand your personal plastic footprint and find ways to reduce it.

A tool to identify areas where you can reduce plastic consumption and estimate the potential positive impact of those changes.

Estimate the environmental benefits of a vegan diet by comparing its carbon, water, and land use footprint to a standard diet.

Estimate the electrical power generated by a hydroelectric turbine based on water flow rate, height difference (head), and efficiency.

Estimate the number of solar panels needed to power your home based on your average electricity consumption and local sunlight hours.

Calculate the expected power output (wattage) of a single solar panel based on its size, efficiency, and the current solar radiation.

Estimate the power output of a wind turbine based on factors like wind speed, blade length, and turbine efficiency.

Compare the financial and environmental costs of commuting by car versus by bicycle.

Calculate the potential impact of a cigarette butt cleanup effort, estimating the number of butts collected and their environmental significance.

Calculate the amount of water wasted by a dripping faucet over time, highlighting the importance of water conservation.

A conceptual tool to explore the potential effects of various global policies on plastic waste reduction.

A conceptual tool to explore the sustainability and carbon footprint of hosting the Olympic Games.

Calculate the effective fuel economy (MPG or L/100km) of a plug-in hybrid vehicle based on your driving habits.

Compare the cost and environmental footprint of drinking tap water versus bottled water.

Estimate the environmental and economic benefits of a single tree, such as CO2 absorption and energy savings.

Estimate your household's or community's daily water demand based on population and usage patterns.

Estimate the potential profit and return on investment from a wind turbine based on energy production, costs, and electricity prices.

Calculate the carrying capacity (K) of an environment using the logistic growth model.

Estimate the amount of carbon dioxide (CO₂) an individual exhales over a specific period.

Estimate your mercury intake from fish consumption based on the type of fish and serving size.

Simulate predator-prey population dynamics using the Lotka-Volterra equations.

Calculate the Shannon Diversity Index to measure biodiversity in a community.

A conceptual tool to understand the factors contributing to smog formation.