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Each day readers send in questions and feedback concerning the various lessons in the School for Champions website. A total of 16111 letters have been answered. They are listed according to date.

You can read them to further your understanding of the subjects.

List of most recent 15 letters





Reducing static cling Static Electricity USA
Finances in starting a business Entrepreneurship USA
Mnemonics to remember order of effort Machines India
Resources helpful Education India
Another assassination coincident History USA
Character lessons for prison inmates Character USA
Person sending me noise Mental Health USA
Using roller skates in spaceship Gravity USA
Getting good grades Machines USA
Friction on Inclined Surface Friction Canada
Leyden jar Electricity Nigeria
Resolve components Physics Nigeria
Dark Matter SfC New Zealand
Reducing friction Physics USA
Pendulum and harmonic motion Motion Tanzania

Next 15 letters

Reducing static cling

Static Electricity

January 25, 2020


I buy almost nothing but cotton clothing, towels, etc. But I've noticed some of the cotton items accumulate static electricity while others don't. For example, even cotton t-shirts from the same brand might build up static or not--why they vary I don't understand. In the drying process, most of the cotton items are fine, with no static, but one or more start off as prone to static and stay that way indefinitely. I believe it might be due to a coating sprayed or applied in some way to the items to reduce wrinkling. The same brand and style might have more or less of this according to the original fabric lot, manufacturing process, or inexact application by employees. Do you have any explanation? I've tried aluminum foil, dryer balls and dryer sheets with minimal success.

T.R. - USA (29333)


Unless they are labeled 100% cotton, some items may include polyester to help keep out wrinkles.

A big cause of static electricity in a clothes dryer comes from over-drying. You might check your dryer settings.

Methods to reduce static in laundry include:
1. Hang Dry
2. Dry Synthetic Fabrics Separately
3. Reduce Drying Time
4. Vinegar Fabric Softener
5. Wool Dryer Balls
6. Vinegar in the Dryer
7. Soap Nuts

I hope that helps solving this annoying problem.

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Finances in starting a business


January 24, 2020


I'm one of the Outreach Coordinators for I happened to come across your site while browsing through a few business resources. You have some wonderful information and resources listed.

Our organization strives to provide small businesses and entrepreneurs with information that relates to their financial well-being. We have constructed a comprehensive section that covers topics such as becoming an entrepreneur, building a business plan, anticipating startup costs, the requirements of owning a business and more.

I was wondering if you would be interested in listing our organization on your resources page.

Thank you for your time,

Jean - USA (29332)


Thanks for the suggested Resource. I added a link to your page from:

Entrepreneurship Resources.

Best wishes for success in your work.

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Mnemonics to remember order of effort


January 23, 2020


Is there any mnemonics to remember the order of effort , load and force in the three classes?

Hello - India (29331)


Three parts of a lever are: Load, Fulcrum, and Effort. Possible mnemonics to remember the order of effort are:

Class 1: LiFE
Class 2: ELf
Class 3: LEFt

where the small letters are just fillers.

I hope that helps.

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Resources helpful


January 21, 2020


Your Education Resources page was super helpful for me when I was recently searching for some educational resources as, so I wanted to return the favour.

Also, I wanted to let you know that I have a site related to astronomy, where I published some content that might make a nice replacement.

Here’s the link:

I hope this helps and keep up the awesome work!

Prem - India (29329)


I am glad the material was useful to you.

I added a link to your site from


Best wishes for success in your work.

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Another assassination coincident


January 21, 2020


...also, the couple that was with President Lincoln and wife were joined by Major Rathbone and his date. Major Rathbone was wounded but lived.(just like Governor Connally)

Kenny - USA (29330)


Thanks for the information. The number similarities is amazing.

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Character lessons for prison inmates


January 19, 2020


I am a prison Chaplain and have been searching for a good independent study/lesson/program on character. What I found here is perfect, what must I do to get permission to use it to teach from, and is there a posttest used in conjunction with a pretest to measure their achievement and the effectiveness of the program?

Mark - USA (29325)


You have permission to use the Character material, provided you cite the Character web page.

Unfortunately, I don't have a full pre-test and post-test, except for the mini-quizzes for each lesson.

I'm in the process of completing a book on Character. I'll let you know when it is ready.

By the way, many years ago I was giving motivational talks at the Pritchess Detention Center outside of Los Angeles. It was a good feeling to help the inmates get back on their feet.

Best wishes for success in your work.

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Person sending me noise

Mental Health

January 14, 2020


A person is putting a noise around me all the time, in my car. In my apt. And especially after I have eaten. The purpose is to put me to sleep or make me unconscious. I need to record these sounds for proof or evidence that this is happening to me. what to do ?

Learline - USA (29319)


Do you have any idea who this person is that is sending you these sounds? Why would the person do this?

Also, it is possible that they are internal sounds caused by problems in your inner ear, similar to Tinnitus.

A good place to start is be getting a checkup from your doctor. Also, try to identify the person.

Best wishes in solving this problem.

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Using roller skates in spaceship


January 13, 2020


if the astronaut had roller skates on and was felling the effects of artificial gravity since the wheels are in contact with the outer shell, whould he stay in one place since the wheens would be turning?

art - USA (29317)


That is a good question.

If the roller skates had magnetic wheels, such that they would keep the astronaut in contact with a steel outer shell floor, he could skate around the outer shell.

If he went in the direction of rotation, it would slightly increase the feeling of gravity, while moving in the opposite direction would decrease that feeling. However, the effect would be negligible since his velocity would be small.

I updated the Artificial Gravity in Spacecraft page to reflect information about using skates.

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Getting good grades


January 9, 2020


is to get GOOD GRADES

juan - USA (29315)


See: Getting Good Grades for more information.

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Friction on Inclined Surface


January 8, 2020


So, what you are saying is that the coefficient of static friction on an inclined surface is greater than on a flat surface?

Urooba - Canada (29313)


Sorry for the confusion.

The coefficient of static friction on an inclined surface equals that on a flat surface.

I've updated Static Sliding Friction on an Incline to clarify the issue.

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Leyden jar


January 8, 2020


What is the meaning of foil, and how can i find leyden jar

Andara - Nigeria (29314)


A Leyden Jar is simply a glass container that has aluminum foil on the inside and outside. It is also a form of capacitor.

See: Storage of Electrical Power for more information.

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Resolve components


January 2, 2020


How can I get your materials, how can I know how to resolve component, the understanding

Okesanjo - Nigeria (29306)


What are you trying to do concerning this subject?

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Dark Matter


December 28, 2019


Hi Ron - hope you got my previous message - would really love to hear from you in regard to things you have written about dark matter and Bohr model. Just want you to know I am genuine - not a crackpot - although my wife would tell you differently ! I have a Phd but have been in and out of science a bit like yourself and am now a school teacher . Im in New Zealand, have published papers (Biology/genetics) - a long time ago. I have a burning issue to discuss about dark matter which we seem to be on the same page about.
Look forward to hearing from you - Dave Nicol

David - New Zealand (29303)


I'm in the process of updating material I have on Dark Matter. I'll let you know when I get things ready. Feel free to ask some questions. They could help with important issues.

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Reducing friction


December 20, 2019


I'm doing a project to how to reduce friction, so how do you reduce friction?

sameera - USA (29300)


See Reducing Sliding Friction.

Also see Friction Experiments.

Best wishes for success in your project.

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Pendulum and harmonic motion


December 17, 2019


Why simple pendulum is not simple harmonic motion

Moh'd - Tanzania (29297)


If the pendulum is let free at a small angle, its motion can be considered simple harmonic motion.

I added a sentence to state that fact in Equations for a Simple Pendulum.

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Next 15 letters


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