May 8, 2010

Happy Birthday, Henry Baker

On this day in 1698, Henry Baker was born in London, England. He is known for three things:


(1) Baker developed a new way to teach the hearing- and speech-impaired (known then as “the deaf and dumb”). He was able to make a lot of money with his system.
(2) He was the father-in-law of the novelist Daniel Defoe. Defoe wrote the book Robinson Crusoe, which is considered by many to be the first novel written in English. (Why only considered by many, and not all? Because different scholars have different definitions of the word novel.) Robinson Crusoe is a book about a castaway on a remote tropical island who meets Native Americans and mutineers and has all sorts of adventures before finally being rescued—28 years later!

Baker and Defoe started the Universal Spectator and Weekly Journal together.
(3) Baker introduced the microscope to the general public with several publications, including The Microscope Made Easy. Science popularizers are important because they increase interest in and understanding of science in the general population, which often encourages young people to study science. Baker won a medal for his microscopical observations of salt crystals.
Baker's interests were varied. We can celebrate him by trying a variety of activities ourselves.
  • Have you ever wanted to learn sign language? ASL (American Sign Language) and BSL (British Sign Language) are complete languages, each with its own grammar. (By the way, the two languages are quite different.) Here are some resources to try them out: ASL video dictionary and text dictionary ...and ASL lessons here and here.
For BSL: an introductory video, short dictionary and resources.
  • Read about castaways and mutineers: a short version of Robinson Crusoe is available here. (NOTE: It's a two-part story, with the second part's link near the top left.) Here is the complete version, free online or for download.
What would you do if you were shipwrecked? Write a story. Maybe you can get rescued in 28 days, rather than 28 years!
  • Look through a microscope at a human hair, a drop of pond water, a thread, a leaf.
If you don't have access to a microscope, learn how to use a compound microscope, and look at four different items with four powers per item, on this virtual microscope website.


Here's a very fun virtual electron scanning microscope.

May 7, 2010

Happy Birthday, Alexis Claude Clairaut

On this date in 1713, a mathematical prodigy was born in Paris, France.

Or was in on May 3, 1713, that Alexis Claude Clairaut was born? Or May 13?


I found all three dates as I looked at various biographies of Clairaut. So I
checked 12 different websites, assuming that one of the dates would be reported on most of the sites and would therefore (hopefully) be the accurate birth date.

But four websites said May 3, four said May 7, four said May 13!


So this number guy, this fellow who was soooo good with numbers, has three different numbers associated with his birth.

They can't all be “right.”


On the one hand, who cares? He was born in the first half of May. While he was alive, he may well have celebrated his birthday on a convenient day rather than the “actual” birthday (assuming that he knew the accurate birthday!)
.

On
the other hand, could there be an explanation for why these different dates are floating around? Is it as simple as a mistake in copying? Did some sources just copy-paste what they found elsewhere, without checking its accuracy? Could it be that the variation comes from the world's uneven switching over from the Julian calendar to the Gregorian calendar? Is the birth date itself unrecorded, and all we have is the baptismal date—and then various scholars made different assumptions about the actual birth date?

I have no idea!

Okay, what about the rest of the life of this “numbers guy”? He was a child prodigy, right?

A prodigy is someone who has exceptional talent at something, and a child prodigy is one whose exceptional talent is recogni
zed at an early age. Mozart was a child prodigy in music, and Clairaut was a math prodigy.

He learned to read by reading Euclid's Elements, he mastered calculus and analytical geometry by age 9, and he read his first mathematical paper to the Academy at age 13!
At age 18, he became the youngest person ever elected to the Paris Academy.

Those are some amazing numbers, huh?


Another number associated with Clairaut's life is very sad—his mom and dad had 20 kids, but he was the only one who survived to adulthood.


Clairau
t's contributions

Clairaut was considered a human computer, and he used his number skills to question, and then support, Newton's theory of universal gravitation, to better compute the Moon's orbit around Earth and the orbit of Halley's comet around the Sun, to confirm the shape of the Earth (which is not a perfectly round sphere like an artificial globe, but instead is slightly squashed down at the poles into an “oblate spheroid”) and more. He made contributions in “pure math” and wrote some math textbooks.




Celebrate Clairaut with Math Fun!
  • Enjoy these beautiful and mathematically fascinating fractals!

May 6, 2010

Be Kind to Animals, Nurses, and Teachers



In the United States, this is
Teacher Appreciation Week and Week of the Classroom Teacher.

It is also Be Kind to Animals Week and National Pet Week.

It is also National Nurses Day.



Whew! What a lot of piling onto one week and day!


Actually, (at least in the United States) every week and day seems to be set off for appreciation of several somethings and someones—even National Nothing Day has a few not-nothings to celebrate and commemorate!

You ce
rtainly can't celebrate and commemorate everything every day...but it might be nice to give your favorite teacher a cupcake and your favorite dog a bone – or otherwise celebrate teachers and pets. (I'm hoping that you aren't going to be seeing a nurse as a patient today, but perhaps you know a nurse who could use a cupcake, as well?)


By the w
ay...

When we
say “Be kind to animals,” does it mean just being gentle with our pets, or does it also mean trying to preserve environments in which wild animals can thrive? Preserving land, cleaning up air and water, and saving forests? If you have a favorite wild spot or wildlife project, this might be a great week to donate time or money to your cause.
Check out the American Humane Society's website.


Some suggestions the society makes:

  • Make a pet blanket.
  • Build a bird feeder.
  • Build a kitty castle or a puppy bed for your pet.
  • Make a pet care bin for home storage.
  • Design a pet adoption kit for a local shelter.
  • Volunteer clean-up.
More ideas can be found here.

The Society urges us to appreciate (and perhaps photograph) wildlife, but also points out that wild animals don't make good pets. The website offers some do's and don'ts about dealing with wildlife to protect that wildlife and people, too!


Check out your pet.

Take this opportunity to make sure your pet's inoculations are up to date.

The National Pet Week website offers some specifics on pet care, incl
uding podcasts on canine influenza (doggie flu), how to give a cat a pill, and other topics. There are articles on traveling with pets and becoming a veterinarian.

Vets, Nurses, and Teachers are needed all over the world...

but there are many other jobs out there, too!


Brainstorm some jobs you might want to have when you are grown up...


Explore Kids Work to find out more about various careers.
Older teens can learn about career planning here.

May 5, 2010


Children's Day
in South Korea


This is a national holiday in South Korea, and it is seen as a time for gifts and fun. Many parents take their kids to amusement parks, movies, parks, zoos, and other excursions—and some of these fun places offer free admission to children on this day! Also, some stores give out free gifts to children on this day.


Tae kwon do demonstrations are a part of Children's Day for some kids. This martial art started in Korea more than two thousand years ago and involves quick, sharp kicking.

Another common activity of the day is traditional games such as the boardgame yut.

Enjoy these photos of Children's Day.

By the way...

Many other cultures celebrate “Children's Day,” although in different months and days. Japan's Children's Day is the same date as South Korea's, but North Korea's version falls in June.



Learn more about South Korea.




  • Here is Haetae (or Haechi, a fire-breathing dog) to color. According to Mythical Creatures Guide, Haetae can stop time, go back in time, or fast-forward time. It also causes the moon's phases and eclipses by biting the moon. Its most important ability may be that it can eat fire—and therefore it can protect people and buildings from fire.
(By the way, the Guide I linked to says that Haetae is a Japanese creature that is commonly seen in or in front of Japanese buildings, but apparently the authors of the website got it wrong. The photo, and the creature and its myth, are Korean.)
  • Here is a South Korean flag to color.
  • When you hear the phrase paper doll, you think of something flat, right? Well, check out these beautiful 3-D paper dolls, made with exquisite handmade paper!
You can use this coloring page to make regular old (2-D) paper dolls of traditional Korean costume.
  • If you're bold and adventurous, you may want to try some Korean cooking. Here are “video recipes” for three egg dishes.
You may have a Korean restaurant or grocery store near you, in which case you can have some yummies without cooking it yourself.

May 4, 2010

Happy Birthday, Bartolomeo Cristofori

(Inventor of the Piano!)


On this day in 1655, Bartolomeo Cristofori was born in Padua in the Republic of Venice (now Italy). We don't know much about his early life, but we can assume that he received training in music and in making or repairing musical instruments, for when he was 33 years old, a prince recruited his services to take care of his many musical instruments.

Prince Ferdinando de Medici furnished Cristofori with a house in Florence where the latter could tune, repair, and even restore
musical instruments, including valuable harpsichords. He invented two new keyboard instruments, the spinettone and the oval spinet, and he built new instruments of already invented types, such as the clavicytherium (or upright harpsichord).

Finally, Cristofori started to work on a new keyboard instrument that was called an arpicembalo (harp-harpsichord), which Cristofori said could play soft and loud: ch fa il piano, e il forte. It is the Italian word for “soft,” piano, that ended up being attached to the new kind of instrument.


By 1711, Crist
ofori had built three pianos, one of which was given to a Catholic cardinal in Rome and the other which were sold. None of these first pianos have survived the three centuries between then and now. In 1713, Cristofori's patron, Prince Ferdinando, died. We know that Cristofori continued to make pianos, however, because the only three that have survived were all built in the 1720s.

(One is pictured here. The pianos are displayed or stored by museums in New York City, U.S., Rome, Italy, and Leipzig, Germany. They are all inscribed, “Bartolomeo Cristofori, inventor, made this in Florence in 172-.” Of course, the words were in Latin, not English, and the actual year was noted.)
We don't know how many instruments he made altogether.
 

Another thing that didn't survive is the only known painting of Bartolomeo Cristofori. It was destroyed during World War II, and all we have now are black-and-white photos of the piece.

It's a pity that we know so little about this man who apparently was quite ingenious as he invented what is today one of the most popular musical instruments.

Celebrate Cristofori!

  • Play the piano. Here is a virtual keyboard you can use if you don't have one! (An electronic or virtual keyboard is not at all like Cristofori's invention!)
Learn how we make pianos today!

Have you ever seen...?

ALSO ON THIS DAY:

My daughter just pointed out to me that today is Star Wars Day.

MAY THE FOURTH be with you.

May 3, 2010


Happy Birthday, Golda Meir


Golda Mabovitch was born on this day in 1898 in Kiev, which
was then in the Russian Empire. (The area became part of the Soviet Union and is now in Ukraine). She moved with her father to the U.S. in 1906. Even though she knew no English as she started to grade school in Mikwaukee (Wisconsin), she ended up forming the American Young Sisters Society, running a fundraiser, and graduating as the class valedictorian.

I guess you could say that she showed leadership skills!

As a teen, Meir moved in with her sister in Denver, Colorado, where she met the man she later married, Morris Meyerson. (She took on her husband's name but later changed it to Meir.) In 1921 the couple moved to Palestine to live on a kibbutz, which is a collective farm, and after World War II Meir participated in the setting up of the state of Israel.

She served in a variety of ways in the government of the new nation, and eventually, in 1969, she became Prime Minister of Israel. She was only the third woman in the world to hold a prime ministership.

By the way, that grade school in Milwaukee that she attended is now called Golda Meir School.


Read some Golda Meir quotes.
Here, you can hear Meir speak for herself.


Did you know...?

  • Israel uses more solar energy per capita (per person) than any country in the world. More than 90% of all households use solar energy for part of their energy needs!
  • Jerusalem, the capital city of Israel, is one of the oldest cities in the world, with a history that stretches back to the 3000s B.C.!
  • Israel is considered part of the continent of Asia. Remember, Golda Meir was the third woman in the world to serve as prime minister of her country. Interestingly, the first two women who served as prime minister were also from Asia!
(First was Sirimavo Bandaranaike from Sri Lanka, and second was Indira Gandhi from India.)
Take a peek...

May 2, 2010


Happy Birthday to the Modern Legend
of the Loch Ness Monster! – 1933


This isn't the Loch Ness Monster's birthday, because the monster almost certainly doesn't exist! And it's not the anniversary of the first story about the mysterious creature, because those stories have been around a loooooooong time—there is a story about a water beast in the River Ness about 1,500 years ago! (This story involved a miracle: a saint commanded the beast to halt as it began to attack 
a man...and the beast obeyed. Notice that this story was about a river creature, not a lake creature, and that it is an awful lot like other miracle stories common at the time.)

It is the modern-day “Nessie” story that started on this date in 1933, when a Scottish journalist reported that a local couple claimed to have seen a huge animal rolling and plunging on the surface of the Scottish lake. (Loch means lake, by the way.)

The local newspaper ran the story, not of the sighting of a huge animal, but of a huge monster.
A few months later, a London couple reported a similar sighting. They described the creature as being like a dragon or a pre-historic animal. Once again, the local newspaper printed their report, and soon more and more sightings flooded in. People were seeing “sea serpents” and “monster fish” and long-lost dinosaur relatives (plesiosaurs).

Eventually, the story got picked up by newspapers in London and elsewhere, and a full-on media “feeding frenzy” began. London newspapers sent reporters to Scotland, a circus offered 20 thousand pounds for the capture of the beast, and ordinary folk drove to the lake to see the monster for themselves.


Nessie is Good for Business!


Nowadays, there is an entire tourist industry based on the legend of the Loch Ness Monster. When I went, I realized right away that there was a lot of cool atmosphere around the lake—especially where the ruins of a castle crouched on a jut of land. The glooming clouds and steady breeze made the lake ripple in such a way that it was really very easy to see a dark gray serpent-like shape traveling over the water.

(But when I stared at any one spot, I saw what looked like the hump of the creature's back over and over and over again, as if the creature was swimming in a little loop in that one place forever, at the same rhythm as the wind.)


The small town nearby (Drumnadrochit) had a different atmosphere. It was, in a word, kitsch.

Giant statues of Nessie provided photo ops with the kids, souvenirs of all sorts were imprinted with a friendly, cartoon version of the monster or with a more realistic plesiosaur, and there were “exhibits” of breathless wonder about all the so-called sightings.

Kitsch can be lots of fun, and we looked at all the color-changing Loch Ness Monster mugs and plastic Nessie rulers and “I survived the Loch Ness Monster” key bobs and so on and so forth, on and on... I finally selected a Nessie T-shirt that I have since worn out (I am now the proud owner of a Loch Ness Monster dusting rag).


A Question of Classification...


The Loch Ness Monster is not classified as a reptile (as you might think because of the plesiosaur connection) or as a fish or mammal. Instead, it is a cryptid. This is the name for the group on animals that are rumored to exist but whose existence is very much doubted by scientists because of a complete lack of reputable evidence. Some other
examples of cryptids are Yeti and Bigfoot.

No Evidence? Wait a minute—what about all those eye-witness reports? And there are supposed to be photos and film, too!


Many sincere people claim to have spotted the monster, but they are apparently reporting non-monster things such as my water ripples, large eels (which do live in the lake), bird wakes, or even seals. (Loch Ness is quite close to the ocean.) Also we can assume that some of the reports are hoaxes, too. (Whenever an opening for a hoax arises, somebody always gladly rushes forward to take advantage of the situation!)



As to the blurry photo and film that have been offered as proof of Nessie's existence, again some have been shown to be depictions of ordinary inanimate objects floating on the lake, while at least one is a confessed hoax.

Loch Ness has been searched for any signs of a “monster”—by fishermen and hunters, sonar and underwater cameras, and even by submersibles. Of course it's impossible to PROVE that the creature does not exist, but in the almost 80 years since the first (modern) reports, there has never been an actual creature captured, nor a skeleton or body found. Because of this lack of reliable / verifiable evidence, the vast majority of scientists consider it very unlikely that plesiosaurs still live on in Loch Ness.

 

Nessie, here in Legos, decorates Florida's Disney World.

Toyota Signed Nessie for Commercials!

Actually, since Nessie doesn't exist, Toyota apparently hired someone who knows how to do cool special effects or CGI. Take a look.


Make Your Very Own Nessie!


Use clay or origami to create a sea serpent!
Listen to a Story!

This is for little kids, and it's very fun. I like the fact that the story is told with a Scottish accent. The only problem is, the story says (and pictures) that there is a real Nessie—and there almost surely isn't. Still, little kids love make-believe!

Another Bit of Fun...


...Read this poem, called “The Loch Ness Monster Song.”