Axetract is a word game. You have to find a hidden word in a grid of letters. Play with words of 4, 5 or 6 letters.
Scripts
33 posts
Calculate your Body Mass Index (BMI), based on height and weight. It indicates if you are underweight, normal weight, overweight, or obese.
Discover and copy CSS color codes, sorted alphabetical. Click on a color button to get its CSS rules, including matching hover states.
Discover and copy CSS color codes sorted in color groups. Click on a color button to get its CSS rules, including matching hover states.
A simple currency converter. Set the conversion rate once. The page will remember your preferred currency and its rate.
A tool to calculate the difference between two dates. The difference is presented in different ways: Years, Months, Days, Hours, etc.
This Decimal Clock divides a day in 10 hours. Each hour is divided in 100 minutes and each minute has 100 seconds.
Lookup words and terms in the Merriam Webster dictionary. See the short definitions of a word or listen to the pronunciation.
Easy Calc is a calculation game to test and sharpen your math skills. Play with addition, subtraction, multiplication or division.
A tool to design magic squares. Download a magic square and send it together with a birthday greeting.
A variation on the well known Memory game. The object is to collects sets of 2, 3, 4, or even more matching cards. Train your brain.
Metric time with 10 hours in a day, 100 minutes in an hour, and 100 seconds in a minute. Noon is at 5:00.
This script is similar to the 'My Weasel' script, but the generated sentences are used as a 'genetic' code for colors.
My Weasel script is similar to the Richard Dawkins' Weasel script, but the selection of sentences is done differently.
A simulation model for insect population studies. This simulation looks at how natural enemies interact with a insect pest population.
One 2 Nine is a calculation game. Use numbers 1 to 9 to complete the puzzles with all calculations matching the targets.
A script that is similar to my version of the Richard Dawkins' Weasel script, but, just for fun, with a choice of other animals.
A script that simulates selection of colors in a peacock tail. What happens if peahens prefer red, green or blue colors?
A pentomino is a shape made of 5 equal-sized squares, which are connected edge-to-edge. There are 12 different pentominoes.
Simulation of Peppered Moth evolution. The peppered moth is darker in areas where tree bark is darker because of soot.
Pest Control Simulation. Develop a model to simulate the growth of an insect population and the effect of pesticides and natural enemies.
Simulation of the development of pesticide resistance in an insect population. Discover how quickly resistance can develop.
A simple and free tool to make your own QR code. Download the code as a PNG file to share it with others.
Introduction to an insect simulation model. How insect populations can be regulated by predators, parasitoids, and other mortality factors.
Introduction to several scripts I wrote to simulate evolution. For example a variation on Dawkin's Weasel and a Peppered Moth simulation.
Sliding puzzles. Have fun with these sliding puzzles of different sizes, including the original "15 puzzle". Click to slide.
SPELL IT is a tool to spell words using different code lists, such as Alfa Bravo Charlie, or Amsterdam Baltimore Casablanca.
Convert between three commonly used temperature scales: Celcius, Fahrenheit and Kelvin. Use the slider or pick a number.
Test your vocabulary with a database of over 40,000 English words, and find definitions for the words you didn't know yet.
Play the Wari game. Wari, oware, awari or awale is a board game, where each player has six cups which each contain 4 seeds.
This page contains a JavaScript with an algorithm of Dawkins' weasel as suggested on the Wikipedia page: 'Weasel program'.
Word Shuffle is a word game. The letters of several words are mixed up and your task is to unshuffle them and discover the words.