• Super Soaker Reservoir Expansion. How do I make the water in my Super Soaker CPS 1000 or CPS 2500 last longer? 12 February 2000.
   

• Air Cannon/Water Gun. How do I make the Mother of All Water Guns? 28 May 2000.

• LED Torch (LED Flashlight). How do I make something useful from a pathetic little torch? 5 October 2004, last updated 13 May 2009.
  
  (FYI - a torch is what Americans call a flashlight. But those Yanks are crazy anyway. If they say "I've got gas in my pickup" or "I'm fully gassed up" they're not talking about gastrointestinal rumblings. I've added a bit of history on the term "flashlight" to the page.)
   

• Car interior lighting. Every so often I get sufficiently annoyed with the feeble lighting inside my car that I do something about improving it. 18 December 2007, last updated 8 November 2010.
   

Alphabetical Order:

1. 4WD Off-road Tyre Pressures. Is down-pressuring when I go off-road all it's cracked up to be? Updated 29 May 2009.
    
2. Anomalous Acceleration. Why are the Pioneer 10 and 11 space probes not accelerating as expected on their trip out from the Solar System? 11 September 1999.
    
3. Apple's G4s to Russia. Why isn't Apple exporting its G4 supercomputers to Russia when it is now allowed to? 28 September 1999.
    
4. Astrology. Why do people bother with this stuff? 15 November 2005.
    
5. Balrogs. Do Balrogs have wings? 5 December 2005, last updated 3 May 2008.
    
6. Barometer, How to Use. How do you use a barometer to measure the height of a tall building? 27 September 1999.
    
7. Battery Types. What type of battery should I use for [insert activity here]? How long will my batteries really they last? Updated 28 February 2012.
    
8. Carbonic Acid. How long do caves take to form? 12 June 2011.
    
9. CD-R, Destroying a. How do you destroy a CD-R? By Bob Starrett, 22 March 2000.
    
10. DICE. A look at the probability distribution given by rolling numbers of six sided dice. 19 February 1999, updated 15 August 1999.
     
11. DV Colour Space. How come a DV stream is only 3.5MB/s when DV is fixed at 5:1 compression? 13 June 1999.
     
12. Famous Five ages. How old were Julian, Dick, Anne, and George? How old was Timmy? What years did the adventures take place? Updated 17 November 2010.
     
13. FireWire, USB, and USB 2.0. Both FireWire and USB have advantages and disadvantages for different uses, but where does USB 2 fit into the picture? 11 April 1999.
     
14. Flash Memory Cards. What types are there, what's best? Updated 18 March 2011.
     
15. Flash Memory Card Online Shops. What are the nicest web sites to buy flash memory cards from? Updated 18 March 2011.
     
16. Food Colouring Allergies. What food additives are people most likely to be allergic to? 12 February 2000.
     
17. Freeze-Frame Swoops. How do they create those amazing freeze-frame swoop shots in music videos, movies, and TV ads? 14 April 1999.
     
18. Fuelstar Tin-based Fuel Combustion Catalyst. Does the Fuelstar tin pellet fuel catalyst really improve fuel economy by 12-15% and engine power by 5%? Updated 3 March 2009.
     
19. Ginger - What is IT? What is the revolutionary invention code-named IT and Ginger? Includes a short bio on inventor Dean Kamen. 12 January 2001.
     
20. Greyscale & Gamma. How do I know if my monitor is adjusted properly? 1 June 2004.
     
21. LED Drivers. Why do I need (or want) a driver for my white power LED? What types of white power LED drivers are there? Updated 8 March 2012.
     
22. Lighting Efficiency How much light can I get from a halogen lightbulb compared with a high power LED for the same input power? Updated 31 May 2007.
     
23. Mayan Chronology. When did the Mayan dating system start? 20 November 1999.
     
24. Moon, Unstable. How come the moon stays up when man-made satellites regularly fall down? 12 September 1999.
     
25. Peanut Butter. Who invented peanut butter? 7 December 1999.
     
26. Risk Attack Rolls. What are my chances when making an attack in Risk? 3 November 2003.
     
27. SCSI connectors. A brief explanation of the various SCSI connectors available, including diagrams of what they look like. 9 April 1999.
     
28. Stationery codes. An explanation of the codes found on school exercise books. 30 January 2009.
     
29. Supercomputing Retina. Does the eye really do as much processing as a supercomputer? 1 May 2009.
     
30. You Are My Sunshine. Now, what were those lyrics again? 9 April 1999.
     

Date Order:

1. SCSI connectors. A brief explanation of the various SCSI connectors available, including diagrams of what they look like. 9 April 1999.
    
2. You Are My Sunshine. Now, what were those lyrics again? 9 April 1999.
    
3. FireWire, USB, and USB 2.0. Both FireWire and USB have advantages and disadvantages for different uses, but where does USB 2 fit into the picture? 11 April 1999.
    
4. Freeze-Frame Swoops. How do they create those amazing freeze-frame swoop shots in music videos, movies, and TV ads? 14 April 1999.
    
5. DV Colour Space. How come a DV stream is only 3.5MB/s when DV is fixed at 5:1 compression? 13 June 1999.
    
6. DICE. A look at the probability distribution given by rolling numbers of six sided dice. 19 February 1999, updated 15 August 1999.
    
7. Anomalous Acceleration. Why are the Pioneer 10 and 11 space probes not accelerating as expected on their trip out from the Solar System? 11 September 1999.
    
8. How to Use a Barometer. How do you use a barometer to measure the height of a tall building? 27 September 1999.
    
9. Apple's G4s to Russia. Why isn't Apple exporting its G4 supercomputers to Russia when it is now allowed to? 28 September 1999.
    
10. Mayan Chronology. When did the Mayan dating system start? 20 November 1999.
     
11. Peanut Butter. Who invented peanut butter? 7 December 1999.
     
12. Food Colouring Allergies. What food additives are people most likely to be allergic to? 12 February 2000.
     
13. Destroying a CD-R. How do you destroy a CD-R? By Bob Starrett, 22 March 2000.
     
14. Ginger - What is IT? What is the revolutionary invention code-named IT and Ginger? Includes a short bio on inventor Dean Kamen. 12 January 2001.
     
15. Risk Attack Rolls. What are my chances when making an attack in Risk? 3 November 2003.
     
16. Greyscale & Gamma. How do I know if my monitor is adjusted properly? 1 June 2004.
     
17. Unstable Moon. How come the moon stays up when man-made satellites regularly fall down? Updated 28 December 2004.
     
18. Astrology. Why do people bother with this stuff? 15 November 2005.
     
19. Lighting Efficiency How much light can I get from a halogen lightbulb compared with a high power LED for the same input power? Updated 31 May 2007.
     
20. Balrogs. Do Balrogs have wings? 5 December 2005, updated 3 May 2008.
     
21. Stationery codes. An explanation of the codes found on school exercise books. 30 January 2009.
     
22. Fuelstar Tin-based Fuel Combustion Catalyst. Does the Fuelstar tin pellet fuel catalyst really improve fuel economy by 12-15% and engine power by 5%? Updated 3 March 2009.
     
23. Supercomputing Retina. Does the eye really do as much processing as a supercomputer? 1 May 2009.
     
24. 4WD Off-road Tyre Pressures. Is down-pressuring when I go off-road all it's cracked up to be? Updated 29 May 2009.
     
25. Famous Five ages. How old were Julian, Dick, Anne, and George? How old was Timmy? What years did the adventures take place? Updated 17 November 2010.
     
26. Flash Memory Card Online Shops. What are the nicest web sites to buy flash memory cards from? Updated 18 March 2011.
     
27. Flash Memory Cards. What types are there, what's best? Updated 18 March 2011.
     
28. Carbonic Acid. How long do caves take to form? Updated 12 June 2010.
     
29. Battery Types. What type of battery should I use for [insert activity here]? How long will my batteries really they last? Updated 28 February 2012.
     
30. LED Drivers. Why do I need (or want) a driver for my white power LED? What types of white power LED driver boards are there? Updated 8 March 2012.