Tuesday, December 15, 2009

Santasaurus?

Lilo the Dinosaur, the mascot of the Museum of Discovery's Dino Dash, made an appearance at the Museum last Sunday for our holiday open house. He had a great time meeting Museum visitors.

Lilo sings along to holiday tunes.



Posing for pictures






High Five!



Lilo loves to give hugs!





Happy holidays from all of us at the Museum of Discovery!

Sunday, December 13, 2009

Sleet and Freezing Rain - Science of Weather

Winter weather explained...part 1! Today...sleet and freezing rain. Tune in next week for snow and hail.


Freezing rain consists of water droplets that fall from clouds as rain but freeze upon contact with the ground when the temperature is below 32 degrees Fahrenheit.




Sleet begins in the form of a snow flake. As it falls to earth, it passes through a layer of warm air and transforms into a liquid state. However, it refreezes before reaching the ground. When sleet hits the ground, it generally bounces.





And, if you would like to predict your own winter weather forecast, visit the Museum’s own television green screen! You can be on TV!

Lastly, a helpful tip: Keep an ice scraper in car just in case; Arkansas has been known to have unusual spurts of wintry weather! You don’t want to be unprepared as I was last winter. (I had to scrape the frozen sleet off my windshield with a debit card!)

Monday, December 7, 2009

The Science of Shivering

If you have ventured outside without a warm jacket, you have probably discovered the frigid air of Arkansas in December, and you may have even felt your hands shaking or teeth chattering. However, you probably didn’t know why you couldn’t steady your hand. Humans have a core body temperature, which must be kept at 98.6 degrees Fahrenheit for the proper function of vital organs. The subconscious act of shivering is your body’s way of maintaining homeostasis. Your muscles surrounding your vital organs shake in an attempt to keep these organs warm; the shaking motion produces heat energy. According to Kazuhiro Nakamura of Oregon Health & Science University, shivering requires a lot of energy and thus is the body’s last resort at maintaining its internal temperature. Before shivering, your body goes through a number of processes to keep heat within the body. First, blood vessels are constricted in an attempt to keep the blood as far from the surface of the skin as possible. This prevents the blood from being cooled and inhibits evaporation. In addition, tiny muscles known as erector pili flex to make your hair stand up straight. This causes the hair to serve as an insulator, and it causes goosebumps to appear on the skin. If these processes do not work to keep the core warm, your body resorts to shivering. But how does the body know when to shiver? Well, your brain monitors the temperature of your skin and tells muscles when shivering should commence. So, the next time you shiver, remember the science behind it; then, put on a sweater.




Want something to do this weekend? Visit the Museum this Sunday, December 12 for FREE SECOND SUNDAY!

Monday, November 30, 2009

Immunity: How & Why

Every wonder why you need multiple injections to be considered immunized? For some inoculations, you must return to the doctor’s office for several shots, and for others, you need only one prick of the medical needle. Why is this? Immunological memory--how well your immune system is able to recognize a certain ANTIGEN (bad guy) and choose an ANTIBODY (good guy) to defeat the unwelcome guest—is the key. Immunological memory protects the body from re-infection by recognizing the bacterium or virus that once caused harm, remembering which ANTIBODY was used to fight the bacterium or virus, and calling upon the supply of these ANTIBODIES, which the body has in store. In some cases, three separate injections are necessary to build up the body’s supply of ANTIBODIES to a level considered to be immune.

>ANTIBODY



VIRUS

The decision to immunize their children is one that all parents must make. Due to the possible side effects, such as autism, some parents do not want to immunize their children. Other parents see this decision as irresponsible and as a threat to the safety of others. In some cases, actually getting a disease, such a chicken pox, could be safer than getting the vaccine because it allows children to naturally build up their immune system without the possible side effects of the vaccine. However, before deciding whether or not to immunize, the danger known as a “super bug” must be taken into consideration. “Super bugs” are viruses and bacteria that have become resistant to vaccines. While this information may seem to favor not immunizing children, those who have not received vaccines are actually at greater risk. Those who have received the vaccine may show mild to moderate symptoms as a result of the super bug, but those who are not vaccinated are more likely to have severe symptoms. Just remember, this is an important decision, so it is wise to understand all available options.

To view a chart of recommended childhood immunization schedule, click here: http://click4biology.info/c4b/11/immunisation.htm

Monday, November 23, 2009

Thanksgiving: Debunked

In light of the approaching Thanksgiving holiday, I thought researching the history of the first Thanksgiving would be an interesting activity. What I found is not only fascinating, it is shocking as well!


MYTH: Thanksgiving has been celebrated annually since the Pilgrims’ great meal in 1621.

Thanksgiving was not a national holiday until 1863, when President Abraham Lincoln issued a “Thanksgiving Proclamation,” declaring the last Thursday of November to be the national day of thanksgiving. Congress did not proclaim Thanksgiving as a legal holiday until 1941.


FACT: The Native Americans brought five deer with them to the Thanksgiving feast.


MYTH: The Pilgrims dressed in black and white, with buckles on their hats and shoes, and the Native Americans wore loincloths.

While numerous artists have depicted the colonists and Native Americans in this attire, the truth resides in fact. First, buckles were not worn until several decades later, and black and white clothing was reserved for Sundays. The colonists most likely wore a variety of colors, including green, brown, beige, yellow, reds, and even purples. Second, the Native Americans were probably clothed in more than loincloths due to the chilly fall weather of Massachusetts.



FACT: The only primary source evidence of the First Thanksgiving is an entry in Edward Winslow’s journal. Winslow, the governor of Plymouth Colony, explained that the colonists shared a feast with Chief Massasoit and ninety Wampanoag Native Americans.


MYTH: The First Thanksgiving occurred in 1621 in Plymouth, Massachusetts in thanksgiving for a bountiful harvest.

While traditionally, we consider the First Thanksgiving to have occurred in early November 1621, the America’s REAL first Thanksgiving occurred in St. Augustine, Florida on September 8, 1565. On this date, Pedro Menendez de Aviles landed on what is now known as Matanzas Bay of the St. Augustine settlement.




I hope all of you have a restful Thanksgiving and spend lots of time with friends and family!

Monday, November 16, 2009

The science of autumn colors...

If you’re like us, you love watching the trees change from forest green to a menagerie of yellows, oranges, and reds. These colors seem to decorate the landscape around Arkansas and remind Arkansans that the chills of winter are approaching.

The key to this transformation is chlorophyll, or, rather, the lack of chlorophyll in leaves.

As you may remember from fifth grade life science, chlorophyll is the green pigment in leaves that enables trees to produce food, using light from the sun.

As summer’s warmth departs and night becomes longer, the production of chlorophyll gradually slows down until it stops. This accounts for the absence of leave’s green color.

Chlorophyll, which usually masks the pigments Carotenoid and Anthocyanin, is absent, enabling these pigments to show their true colors. Carotenoid accounts for the yellows, oranges, and browns, while Anthocyanin has red and blue tints.

However, as Robert Frosts’ poem states, “Nothing Gold Can Stay.” The trees eventually shed their leaves, for a leaf without chlorophyll is like an empty file cabinet: its useless and it takes up space.

So ends the life of a leaf, once green and now golden. It’s final journey will take it from your yard to the trash can. Happy raking!

Thursday, November 5, 2009

Stay Healthy! Visit Health Hall




During this cold and flu season, take a trip to Health Hall right here at the Museum of Discovery!










Map the brain in an interactive game.









Discover just how flexible you are!
Also...
Chart your blood pressure, see how blood flows through the heart, AND check your heart rate!




You can even practice dentistry using real dental equipment.








Looking for a unique and original gift for the holidays? How about the H1N1 virus (Swine Flu)! At the Museum store, you can buy a stuffed plush version of the real thing. This will definitely be a gift to wow and entertain! Check out all the available bacteria and viruses at www.giantmicrobes.com.

Wednesday, October 28, 2009

The Best Part of the Museum

With all the interactive activities, exciting exhibits, and shows the Museum of Discovery has to offer, we wondered, “What is the best part of the Museum?” To answer my quandary, we asked employees and visitors alike to tell me their favorite thing about the museum.

ANDY, who now works in museum workshop said, “When I was young, I liked the Native American exhibit! The history is very interesting.”

NAN SELZ, Executive Director of the Museum explained, “The animals and insects exhibit is my favorite. The animals are fascinating to watch, especially the more exotic ones!”

JACKIE, our head receptionist, told me, “The kids are my favorite part of the Museum. Watching them learn and grow is wonderful.”

Five year old SARAH exclaimed: “I like to clean the big mouth [in Health Hall].”

I even spoke with two first-time-visitors at the Museum. They told me they were amazed by the exciting atmosphere and colorful exhibits.

While everyone has a different opinion on the best part of the museum, one thing is certain: everyone enjoys a visit to the museum! What is your favorite part of the Museum? Leave us a comment!

Monday, October 19, 2009

Hula your way into winter with this party theme!

PSSST! Want to know a secret? The Museum of Discovery has come up with a new birthday party theme: LUAU!

The birthday party is PERFECT for older children between the ages of 9 and 13.

"We'll have a hut above the cake table, fish nets with ocean life on the eating tables, grass skirts and leis for all party guests," says Kate Maze, Birthday Party Coordinator. "We'll even have a 2 FOOT TALL ACTIVE VOLCANO!"

All this cool stuff is currently being designed by Joel Gordon, Exhibits Director.

We’re always making changes at the Museum of Discovery! If you are interested in booking a themed birthday party at the Museum of Discovery, please contact Kate Maze at 501-396-7050 ext. 112. She books birthday parties on Mondays, Wednesdays, and Fridays, between the hours of 9 and 4. We look forward to your call!

Thursday, October 15, 2009

Robinson Elementary wins pizza party

Robinson Elementary had the largest school team that participated in Dino Dash. As a reward, they go a pizza party at the Museum of Discovery.

Some of the members of the winning Robinson Team---thanks to Tammi Robinson for putting together a winning team!








The party included lots of pizza (of course), a chance to see Lilo again, and free admission to the Museum for the day. FUN!






See you next year, Robinson!