1. New on IntMath: Curvilinear motion animated graphs

2. Estimation and the anchoring principle

3. Bill Gates and his pancakes

4. Math movies

5. Math puzzle: Who dies?

6. Final thought: Truth

1. New on IntMath: CSS Animated Hexagon Wave

2. Units

3. Math in the news: Almost prime numbers

4. Brian May - astrophysicist

4. Math movies: Data portraits and fingers

5. Math puzzle: Divisibility

6. Final thought: It's up to us

How many calories? and the way the kilogram was defined has been in place since 1799. It recently got a makeover. ]]>

2. Resources: Grasshopper, Sketchup

3. Math in the news: Light beam

4. Math movies: Ballet, Mars

5. Math puzzle: Tokens

6. Final thought: Jack Ma ]]>

1. New on IntMath: EFFEKT bridge model, Lissajous animations

2. Resources: oPhysics, topol0gy software

3. Math in the news: 4-color graph problem

4. Math movies: Statistics, time

5. Math puzzle: Factorials

6. Final thought

We explore how to find the equations for a spiral around a hyperboloid.]]>

1. New on IntMath: Infinite series, Spinning clock

2. Resources: Simpsons math, Unknowables

3. Math in the news: Plimpton 322

4. Math movies

5. Math puzzle: EFFEKT

6. Final thought: Actions

Infinite series have played an important role in the development of mathematics, especially calculus. Here's some background to some applets I wrote recently.]]>