MGTutoring.com. A Rational Perspective on Education.

May 12, 2011

Pendulum Waves

Filed under: Fun,Mathematics,Physics,Science — Administrator @ 9:02 pm

Someone posted a video of pendulum waves on YouTube. Absolutely amazing. Beautiful.

May 10, 2011

The Art of Sand

Filed under: Art,Fun — Administrator @ 10:41 am

‪Kseniya Simonova makes “sand animation” for the show Ukraine’s Got Talent. Amazing. Watch some of the other videos on YouTube, too.  I had seen these videos a long time ago, but was recently reminded of them by a friend.

August 7, 2010

That 1895 Salina, Kansas Exam

Filed under: Education,Fun,History — Administrator @ 4:36 pm

Someone has posted their answers to the exam. Nice.

An example answer:

9. Use the following correctly in sentences, Cite, site, sight, fane, fain, feign, vane, vain, vein, raze, raise, rays.
•    a.) The cite which was given as a source for the quote was incorrect.
•    b.) The site was surveyed yesterday.
•    c.) My rifle has a front and a rear sight.
•    d.) We celebrated the re-birth at fane.
•    f.) She would fain stay with her husband.
•    g.) Can she feign surprise and excitement?
•    h.) The vanes on the windmill are broken.
•    i.) It is vain to think you are better than others.
•    j.) Mother has a varicose vein in her leg.
•    k.) Tomorrow they will raze the old barn.
•    l.) Today they started to raise a new barn.
•    m.) The rays of the sun feel good in the spring.

HT: Patrick D.

August 23, 2009

Taking Hand Shadows To a New Level

Filed under: Fun — Administrator @ 10:02 am

Raymond Crowe, from Australia, does a hand shadow show to the song “What A Wonderful World” (as performed by Louis Armstrong).

HT: HG.

August 14, 2009

Old Time Radio Shows and Music

Filed under: Americana,Art,Fun,History — Administrator @ 8:47 am

Radiolovers.com – Free Old Time Radio Shows describes their Website as follows:

We offer hundreds of vintage radio shows for you to listen to online in mp3 format, all for free. Before the days of video games, shopping malls, MTV, and the Internet, families used to sit in their living room each night to listen to radio shows such as Superman, Groucho Marx, The Avenger, Gunsmoke, Sherlock Homes, and many others. When TV become popular in the 1950′s, most of these shows went off the air, but they now live on at websites such as this one and on weekly nostalgia radio broadcasts worldwide.  © 2009 All Rights Reserved.

Some of the shows they have are:

Comedies: Amos & Andy | A Date with Judy | Barrel of Fun | Benny Goodman | Bob Hope Show | Blondie | Evening with George Burns | Camel Comedy | More..

Dramas: Avenger | Defense Attorney | Charlie Chan | More..

Mysteries: Boris Karloff | Cloak and Dagger | Dark Venture | More..

Variety: Al Jolson Show | Arthur Godfrey and his talent scouts | Artie Shaw | Authors Playhouse | Big Bands | Eddie Arnold Show | Ernie Ford | More..

Westerns: Hopalong Cassidy| Death Valley Days | Gene Autry | Gunsmoke | More..

SciFi/Superheros: 2000 Plus | Batman | Buck Rogers | More..

© 2009 All Rights Reserved.

August 12, 2009

The “Chocolate Calculator” Reprise

Filed under: Fun,Mathematics — Administrator @ 8:05 am

Following the steps we are supposed to go through, we get:

1. First of all, pick the number of times a week that you would like to have chocolate (more than once but less than 10).  I’ll pick 3.

2. Multiply this number by 2 (just to be bold). This gives us 6.

3.  Add 5.  This gives us 11.

4. Multiply it by 50 — I’ll wait while you get the calculator. This gives us 550.

5. If you have already had your birthday this year add 1759 …
If you haven’t, add 1758.  Let’s pick July 26, 1980. So we add 1759 to 550, to get 2309.

6. Now subtract the four digit year that you were born.  This gives us 2309 – 1980 = 329.

You should have a three digit number.  Yup: 329.

The first digit of this was your original number (i.e., how many times you want to have chocolate each week).  Yes, it is! It’s 3!

The next two numbers are YOUR AGE! (Oh YES, it is!!!!!)  Yes, again! It’s 29! (This is a hypothetical; I am not 29.)

What’s happening is that we are coming up with 2009 by a round-about, hidden way. We start with 5,

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August 10, 2009

The “Chocolate Calculator”

Filed under: Fun,Mathematics — Administrator @ 6:45 am

From an email:

1. First of all, pick the number of times a week that you would like to have chocolate (more than once but less than 10).

2. Multiply this number by 2 (just to be bold).

3.  Add 5.

4. Multiply it by 50 — I’ll wait while you get the calculator.

5. If you have already had your birthday this year add 1759 …
If you haven’t, add 1758.

6. Now subtract the four digit year that you were born.

You should have a three digit number.

The first digit of this was your original number (i.e., how many times you want to have chocolate each week).

The next two numbers are YOUR AGE! (Oh YES, it is!!!!!)

How does it work??  (I’ll post the answer in two days.)

June 24, 2009

Memories From Last Week

Filed under: Fun,Horses,Pictures — Administrator @ 7:45 pm

Riding Bareback

Nice that the evil horseflies are gone, that they have finished their one-month cycle of attacking animals for blood, so I can ride back in the woods again! Last week, the ride after this pictured ride, I went back out in the woods after a two-week absence. I did not want my horse to have to suffer horsefly attacks. They are horrible (see also URI‘s Factsheet): they swarm in groups of 5 or 10 or 25; they cut into animals with knife-like “teeth” instead of sucking blood like mosquitoes; they leave trails of blood a few inches long; they are so bloodthirsty that no amount of flyspray or Deep Woods Off will keep them away. They deserve to die.

But today and Monday I had good two-hour, unmolested rides in the woods. Sunshine, blue sky, green trees, dark shadows, brown earth, my horse, me, and peaceful, pleasant solitude.

June 16, 2009

Pics From Riding Today

Filed under: Animals,Fun,Horses,Pictures — Administrator @ 5:49 pm

Looking at some friends.

Can you tell Heiric is being ridden bitless, halter only?

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June 15, 2009

Incredible

Filed under: Art,Fun — Administrator @ 6:40 pm

Go watch a pair of youngsters (6 and 7 years old) do some dance and acrobatics.

I could not do that in a million years…

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