## A 3D Animated Excel Roller Coaster – video preview

This is a video preview for the 3D animated roller coaster previously presented on this blog. A tutorial on this topic will be posted later. [sociallocker]>[/sociallocker]Continue Reading

## Three-Pendulum Harmonograph #2 – an improved version

Hi! Here is an improved (faster and cleaner) version of the harmonograph. The worksheet has three different areas, the physical machine (a photo of the machine build out of wood by Karl Sims), the virtual machine (which is a 2D chart with a top view of a model showing the three pendulum ends, the drawing table, and the linkage mechanism which connects pendulum #1,Continue Reading

## Digital Clock Model – an Excel 2007 adaptation

Hello!  Due to some incompatibility, I re-adjusted the old digital clock for the 2007 version of Excel. In Excel 2003 or earlier if you click on a chart point twice (with a certain delay between clicks) you can paste a picture and have the data point actually convert into that picture. In 2007 the same trick works but somehow the pictureContinue Reading

## Three-Pendulum Harmonograph (#1)- an automatic drawing machine

Ladies and Gentlemen, you will like this. Here is a harmonograph in MS Excel 2003 which models a real one build by Karl Sims. Watch the video first to know what to expect. I could have built it from the bare drawing equations but that would have been too easy and no fun at all so I tried to model theContinue Reading

## A Realistic Looking Digital Clock Model

Hi guys, here is a dynamic digital clock model in Excel I made today. The display looks very realistic. I studied for this all the clocks in the house including the stove, microwave oven and washing machine clocks, plus some pictures on Google. It will display your local computer time. It uses “sprites” as a method of creating the digits. IContinue Reading

## How to Make an Analog Clock in Excel

Hello folks, here is a tutorial about building a clock in Excel. Enjoy! [sociallocker][/sociallocker] Building a live Excel clock by George Lungu Here are a few date and time functions in VBA: Now  : Current date and time.   Example: 7/5/00 3:16:38 PM returned by Now Date  : Current date only.           Example: 7/5/00 returned by Date Time : Current time only.          Continue Reading

## Time in VBA Part#1 – Japanese Clocks

Hi guys, here is a simple file with a bunch of clocks. The code is very basic and the whole workbook is fully open so you can see how it’s done. All the spread sheet calculations are contained in the upper left corner and the VBA code is just few lines long. Click the “Run-Pause Clock” button to start or pauseContinue Reading

## Animated Roller Coaster in Excel

A roller coaster in Excel 2003 in 3-dimension (perspective view). To start de ride after download, click the little sun icon in the NE corner of the chart. Most of the calculations are done in the spreadsheet with very little VBA as a “glue”. The display is created on a plain 2D scatter plot. [sociallocker][/sociallocker]Continue Reading