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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 16195 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





Mass and gravity Gravity USA
Coping with Tinnitus Sound Venezuela
Angle of sound Sound USA
Personal character Character Uganda
Finding angle of sound Sound USA
Borrowed friends money Character USA
Sorry School for Champions Pakistan
Studying Physical Science Physics Kzn
Sensory overload Mental Health USA
Public speaking for 3rd grader Speaking USA
Very Helpful Grades USA
Different materials Static Electricity USA
Looking for cause of itchy skin Physics USA
Comparing philosophies Education Pakistan
Possible solution to disease Chemistry New Zealand

Next 15 letters

Mass and gravity


April 10, 2021


I am still confused as to mass and gravity. Say for example that the earth had 10% more mass (other things being the same) what would its gravity be?

Michael - USA (29906)


Thus can be a confusing issue.

Gravity means the force of attraction of a mass toward the Earth, according to the equation: F = mg, where g is the acceleration of the object due to gravity (g = 32 ft/s^2 or 9.8 m/s^2).

See Acceleration Due to Gravity is Constant.

"g" is based on the equation for gravitation F = GmM/R^2, as shown in the above reference. Thus if the mass of the Earth M was 10% greater, g would be 10% greater or about 35 ft/s^2.

I hope that helps.

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Coping with Tinnitus


April 9, 2021


Hello, I have tinnitus. I have identified my tinnitus frecuency noice around 10MHz using a frecuency sound generator. So I am wondering if I could find a noice cancellation software that produce a wave cancellation frecuency but for a user specify frecuency. The user choose the frecuency and the software produces the cancellation wave. If this works, I could cancel the tinnitus noice I hear. Is this possible?

Franklin - Venezuela (29905)


Tinnitus is primarily an internal ailment. See Ringing Noise in Ears: Tinnitus

You may be able to mask the noise you hear with soft music or some other sound source, but since the sound is internal, sound cancellation probably would not work.

I hope you can find a solution or learn to cope with the annoying problem.

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Angle of sound


April 8, 2021


Hi my question for you is I’m having trouble understanding how to find the angle between you and the line of sight of a sloth for example let’s say you’re 20 m away from around the track thought we need to thousand meters away if you Hewitt how do I get a find the angle that you have between you and the train? Thank you so much hope hope to hear back from you soon!

Cody - USA (29904)


I'm not sure I understand the configuration of your experiment. Perhaps if you give more details on what you want to do.

If an object is moving at some angle with respect to the line of sight, the sound frequency would be reduced by the cosine of the angle. If you know the given frequency and compare it with what you hear, you could fine the angle. However, that isn't easy to do.

I hope that helps somewhat.

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Personal character


April 6, 2021


Personal character influence the person's being liked or disliked. Discuss

Nshabire - Uganda (29901)


You are probably thinking about Social or External Character traits. (See Social Traits)

Personal character traits primarily concern you attitudes toward doing work for yourself.

Social character traits concern whether you help or harm someone else. Obviously, if you are helpful and positive toward others, they will be more apt to like you.

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Finding angle of sound


March 28, 2021


Hello, I'm Cody Boys. I was curious how to find the angle between you and the line of sight of a moving source. In the article, it has an example where you are standing 10 meters from the road, and you hear the horn of the car when it's 50 meters away. I'm not quite understanding how to find that angle. The article has 10/50, which equals 0.2. Then it says the angle is 11.5 degrees. I don't understand how we're getting this angle from 0.2. I tried dividing 11.5/0.2, and the calculator always gives me random numbers that don't make since. I've tried looking at other sources of information, but none seem to have the answer I'm looking for. Does this formula also tell you how long it takes the frequency to shift to its highest to its lowest? The reason I ask is, when you hear a train pass on the railroad, the pitch change is sudden. But, when you hear the sound of an airplane or helicopter, the pitch seems to gradually shift, almost like it is in slow motion. I appreciate all of your time and helping me, it makes my day. Thank you!

Cody - USA (29893)


I just answered your other letter, but was not clear on the answer I gave. I should add an image for that example.

When the car is 50 m from you and 10 meters is the distance perpendicular to the road, the sine of the angle between you and the car (at that moment) is 10/50 = 0.2. Look up the inverse sine for 0.2 and you get about 11.5 degrees.

As a car or a train blaring its horn gets closer to you until it is perpendicular to you or 10 m away. At that position, you hear the exact frequency. Then, as it moves away down the track, the Doppler effect causes the frequency to lower.

The rate of charge in frequency has to do with the rate of change in the distance from you.

I hope this clarifies things a bit. It can be a confusion problem.

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Borrowed friends money


March 2, 2021


Thank you for your message. I am 65, a widow and loaned good friends $10,000. They are 80 and I thought I was safe. After 6 months with no repayment or verbal message -- I confronted them. All they could say was "we don't have the money." I know I will never get a dime but let my guard down because of their age and I trusted them. Please remind people that these people come as true friends. Even when they have a statue of an angel in their front yard.

Marianne - USA (29874)


I'm sorry to hear that it looks like your "friends" probably won't pay you back. Lending someone a few hundred dollars is doing a good deed, but lending $10,000 should be considered a business transaction. In other words, payment conditions should be in writing and perhaps a lawyer should be involved before making the loan.

You might try asking for payments of something like $100 at a time, so perhaps you can some of your money back. You might even try to shame them into paying, by contacting their grown children about the loan.

Although these people may be short on cash, not even trying to pay you is a sign of very poor character on their part. At the very least, it shows that you are helpful and kind.

I hope your loan doesn't put a financial burden on you.

Best wishes on getting some money back.

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School for Champions

February 27, 2021


Hi School-for-champions,
Hope you are doing good!
I'm Bukhtawar and I work for an online digital marketing agency  "Futuristic Artists".
I came across your site and got impressed with the persistent and efficient info and sensations on your site.
I was wondering if you do allow sponsored post & in-context link placement on already existing articles on your site? If yes, kindly reply to me with the best price per post.                                                                                 

Bukhtawar - Pakistan (29871)


Thanks for the offer. Unfortunately, we are not adding such items at this time.

Best wishes for success in your work.

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Studying Physical Science


February 25, 2021


I would like to study Physical sciences,I would like to start from basic & more.

Jorah jassie - Kzn (29868)


I am glad you would like to study Physical Science. Starting points include:

Astronomy (
Chemistry (
Physics (

Best wishes on success in your studies.

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Sensory overload

Mental Health

February 24, 2021


My 9-year-old daughter is autistic and she is very sensitive to noises and smells. I have written a guide that may be worth adding to your site. I have tried to make it very comprehensive, it discusses sensory overload and tips on how to manage it.

It can be found at:

I would love to know what you think.

Kind Regards,

Lisa - USA (29866)


Thanks for the resource. I added it to:

Best wishes to your daughter in coping with her autism.

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Public speaking for 3rd grader


February 22, 2021


I am looking for public speaking lessons for my 3rd grader. Please let me know if you have any sessions planned.

Thank you!

Navyatha - USA (29863)


3rd graders usually aren't usually fearful of speaking to a group or class as are older students. The speech should be short, so it is easily memorized. When I was in the 3rd grade and had to recite a short poem to the church congregation, I was just told to speak loud and not mumble. I didn't know enough to be frightened, and it turned out fine.

There are a number of YouTube and other resources about 3rd graders speaking:

The thing is not to make a big thing about it. Let the child practice a few times in front of you, giving applause when finished.

I hope this helps to teach your 3rd grader about public or class speaking.

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Very Helpful


February 11, 2021


very nice article and it was very helpful

Darpan - USA (29845)


I am glad the material was helpful or useful to you.

Best wishes for more success.

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Different materials

Static Electricity

February 10, 2021


Static electricity.
When you have thin, aging, dry skin the following are electric...based on movement, not stationary.
By touching and not rubbing...this dry skin absorbs more static electricity, in parts, than other people. People carry different amounts of static electricity.

Polypropylene, usually garbage bags and other plastic items. Sparks will be emitted from the plastic bags, for example, and jump on the person with thin dry skin. Sometimes sparks jump into the person's eyes. Sparks will jump from the person's hands into their food. A person with high amounts of static electricity can shake open garbage bags in a small room repeatedly over a two month about 10' by 25'...bags were black Suretuffs, 8 gallon and some larger.
Finally a sonic boom will go off in the room at ceiling with a magnetic field created. Ceiling about 20' high.

Paper, especially toilet paper with facial tissues being second. Writing or typing paper very
lightly electric. To touch. Irritating to hands.
A piece of toilet paper will move back and forth and side upon touch from static electric thin dry hands. Too much static electricity ingested,, usually from hand foods, can cause toilet paper or tissue paper to explode into tiny fragments if wipe the mouth with them. The tissues grab-hug the skin around the mouth and explode. Picking up a still folded clear plastic trash bag can cause the bag to wrap instantly around an electric arm.

Cloth or clothes wrapped in plastic wrappers.
Very fuzzy to touch..static electricity.

Cardboard. Very fuzzy.

Bed sheets. Cotton, and cotton/poly. Holds a ton of static electricity waiting to be released. Mostly from sheets laundered improperly with one or another fabric softener, that is liquid softener in thewasher, and/or dryer sheets. Both softeners get their residues stuck on the cloth.
Towels and cotton blankets hold even more static electricity than bed sheets. Proper laundry is don't use softener on linens.

Cotton clothes can become more electric than most synthetics, except nylon and chiffon trimmings and inserts.

A person who stores more electricity in their body, and the hands,where electricity tends to emerge,may even pick up and try to open small chip bags, and have the charge from their hands run down the chip bag and blow the bottom open.

Aluminum cans...sudden heavy surges from the hands can blow a tiny, pin point size hole into a full, unopened can. Aluminum with paint may melt into a finger tip and get absorbed into the skin. Same with rubber items..may absorb a tiny bit into a dry skinned finger.

Those things above are very ready to share electric protons, electrons...usually the person gets more electrons. Both a room ionizer and ionizer necklace are recommended. Both these items will help keep the person from collecting more positive charges...items manufacture electrons. The electrons will help the person breathe better. Too positive will stuff up your nose.

What do you think, Mr. Kurtis?
Ready to do some experiments?

Elizabeth - USA (29833)


You have an interesting selection of materials that may be affected by static electricity or may enhance static charges.

Have you thought of any experiments to test your assumptions? That certainly would be a good project for you to do.

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Looking for cause of itchy skin


February 10, 2021


I have completed some experiments in static electricity. Like to share.

Doesn't cause fibromyalgia. But, I have reason to believe causes Morgellons.

Elizabeth - USA (29838)


I haven't seen any articles that indicate static electricity can cause fibromyalgia. However, dry skin can cause itching, scratching, and perhaps the Morgellons condition.

When the air is very dry, static electricity can be more prevalent. Static sparks may irritate the skin, but in general static electricity does not.

If you have a problem with itchy skin, it is best to see a dermatologist.

Best wishes in solving your problem.

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Comparing philosophies


February 2, 2021


My Question is How can compare all philosophies in one chart?

iqra - Pakistan (29820)


The are a number of different philosophies. See:

You need to set an area to list, such as philosophies of education, of life, of business, or such.

A good place to start is at:

I hope that helps. Best wishes for success in your studies.

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Possible solution to disease


January 23, 2021


I'm a retired thinker

I'm trying to track the right kind of antivirus to let loose on the corona virus and kill or neutralize

I wonder if there's an approach which assembles negative components or molecules in an antivirus which will attack and neutralize the corona virus

like on tv when the blue enzymes gobble up all the red ones

I have imagined a man made virus which has all the opposite electric elements to the cv and when they meet just neutralizes the harmful virus immediately

imagine tankers spraying this stuff all through infected countries to knock out the cv

Am I on the right track following your analysis of molecules and componentry down to brass tacks?

Gerald - New Zealand (29816)


It is good that you are thinking of possible ways to stop the corona virus. Unfortunately, I don't know much about how the virus works or even how the vaccines counter these highly complex molecules.

It might be worthwhile to contact local medical research facilities or vaccine producers to see if they are interested in your ideas.

Best wishes for success in your work and research. Perhaps your ideas can help stop this nasty disease.

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