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Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Thursday, August 27, 2015

Breaking Bad, Home Edition

Today, my wonderful hubby decided to surprise me with a treat: homemade root beer!

He bought the root beer extract (he'd tried to find Zatarain's, but the store didn't carry it) and dry ice. My husband then proceeded to make the root beer, mostly according to the package directions, but using water carbonated with the dry ice instead of soda water as the directions called for.


Dry ice in water

So far, so good

Just about ready to bottle up


But what happened next was both a spectacular display of physics, and something to make Walter White and Jesse Eisenberg jealous.

After he poured the finished root beer into my beer growler for storage (which also contained dry ice to maintain carbonation), the pressure from the carbon dioxide in the dry ice caused the root beer to explode, the force of which shattered a glass on the counter top. The only reason my growler hadn't turned into a root beer and carbon dioxide-filled bomb was cuz my husband, seeing how the root beer was rapidly bubbling up in the growler, quickly took the cap off just in time to see his creation blow.

Oops...


I actually had not witnessed the explosion. I was in the bedroom, playing with the baby, when I heard a loud BANG! My first thought was that my growler had exploded. My husband reassured me that it hadn't, but called me into the kitchen to survey the damage.

There was root beer EVERYWHERE. It was on the floor in the kitchen with the broken glass, the ceiling, the counter, and the root beer even made it all the way up into the living room! The work area and server were splashed with sugary brown root beer, as were our shoes and the front door. My husband spent the rest of the morning cleaning up the fallout and vacuuming up the broken glass.

The aftermath


Miraculously, the growler survived. Its cap went missing (if it hasn't been blown into another dimension, I suspect it's under the fridge or between the counter and the fridge), but the vessel remained intact. My husband, though, cut his hand. How it happened remains a mystery, but I suspect it was from flying bits of dry ice.

I refused to drink what was left of the root beer since the remaining glass was covered in blood from my husband's hand. After bandaging his hand, my hubby wiped down the glass, drank the remaining root beer, and said it was tasty.

The costliest glass of root beer in the world


As it turned out, the critical error was not letting the carbon dioxide vent before sealing the bottle. My husband resolves to try again, but hopefully with less explosive results next time.

No matter what, "science MUST be served!"


And I'm still searching for my growler cap...

*Update 8/28-I found the cap! It was somewhere clean on the other side of the living room. The Doctor was kind enough to drop it off as the TARDIS buzzed by during the night. Hope it helped defeat whatever villain he had to deal with next.

Tuesday, August 25, 2015

Feuding with Fundies

Today's post was inspired by a conversation I had with a friend on Facebook this morning as I was eating breakfast. My friend, who lives in India, recently entered into an online relationship with a woman here in the US.  After congratulating him on the happy news, I asked my friend a few questions about his new girlfriend to get an idea of what she was like. He explained to me that while she lives at home with her parents and is a freelance DJ on the weekends, there's a feud going on between her and her parents because her parents are fundamentalist Christians while she is an atheist.

When one thinks of the word "fundamentalist", at least here in America, two specific images come to mind: one of a howling preacher standing in front of a congregation, waving around a Bible and admonishing his congregants to be "saved" or burn in hell; and the other of Moslem terrorists posing for pictures while brandishing a Koran in one hand and weapons in the other.

Dubs and Osama-two sides of the same coin


To understand these seemingly contradictory images, one must first know what "fundamentalism" means. Linguistically, the term "fundamentalist" is based on the root word "fundament", which means "foundation". In each of these two images, the preacher and the terrorist, the individuals believe that what they are doing is the correct way to practice their religions because their respective sacred scriptures say certain things which are to be followed, word for word.

This is where the trouble starts. Because fundamentalists believe that THEIR way is the "right" way, it causes all sorts of problems in society at large.

If you look beyond the linguistic definition of "fundament", you'll also see it refers to an anus; more crudely, the ass hole.

Pastor Robert Tilton, also known as "The Farting Preacher", appropriately enough

Ultimately, the fundamentalist is an asshole.

By its very nature, fundamentalism of any stripe (from the religious to the secular) puts ignorance up on a pedestal and says "this is what you must aspire to be. Anything outside our sacred texts is sinful!" It's one thing to be able to cite the preferred religious/secular texts backwards, forwards, up and down; but it doesn't mean shit if it renders you incapable of functioning within society at large.

That is ultimately the big beef I have with fundamentalism. Because of the ignorance that results from being exposed to such an insular world, the thumper essentially spits in God's face by telling Him "Your creation is not good enough for me! Therefore, it's not worth learning about!" Religious fundamentalists deny themselves knowledge of sciences, history, philosophy, and even knowledge of other sects of their own faith, much less other faiths. Secular fundamentalists deny themselves knowledge of religious traditions and practices, as well as humanities; the "why" aspects of life.

Do yourself a favor. Don't be a thumper. Don't be an asshole

Saturday, August 8, 2015

A Day at the Museum

Today was a big day for the baby. We took her to the Children's Museum of Tucson. I'd originally planned to go this past Thursday since we'd be in the area anyway, but while looking online for admission prices, I saw they offered reduced admission on the second Saturday of the month to coincide with the monthly Second Saturday street fair in downtown Tucson. Always the frugal family, we set Saturday to be the day.

The front of the building. Picture found here
Memorial out in front of the fence. Caption says "To the memories of the citizens of the State of Arizona who gave their lives so that we might live in peace and unafraid in this stark borderland"

Built in 1901 with a grant from the esteemed Andrew Carnegie foundation, the Children's Museum was originally the Tucson Public Library. It served as the main library for the city until 1989, when the current Tucson Public Library (now called Joel D. Valdez Library) moved to its current location on Stone and Pennington. The Children's Museum was established shortly thereafter.
A brief history of the building that houses the Children's Museum

It was very loud and chaotic upon entering the building, as to be expected when there are tons of kids around. But for $2 admission (regular price $8), it couldn't be bad.

I admit, I'm somewhat spoiled. Growing up in the Chicago area, there were a number of high quality museums to go to with plenty of exhibits to delight the senses. My impressions of the exhibits were disappointing compared to what I'd experienced growing up. But, I'm not in Chicago anymore. Besides, as a parent, I have to swallow my pride. I would have never otherwise set foot in this building if I didn't have a child.

The first exhibit we visited was one that was electricity based. In addition to the classic plasma ball, there was a crank generator, a Tesla coil, an interactive circuit, and a few other electricity-related items. Of all the exhibits we saw, this was my favorite one. My husband particularly liked this exhibit, since he'd been associated with various forms of electricity from childhood on up and even worked as an electrician for a time.
Daddy the mad electrical genius


Mommy's turn to be a mad scientist

The generator



Standing proudly at the device named for one of my fellow countrymen, Nikola Tesla

Next up was a small section dedicated to Public Safety. In there was a shell of an old Tucson Fire Dept. truck and a non-working Tucson Police Department motorcycle. I was pleased to see that TPD uses Kawasaki for their bikes. I have a high opinion of Japanese motorcycles.

From there, we made our way to the gravity exhibit. The best part of this exhibit was building a tube path and dropping a ping pong ball down it. The most annoying part of this exhibit, however, was a wheel loaded with jangly things that you cranked to see centripetal force in action. It sounded like broken glass, and the baby wasn't too fond of that.

Watch the marble...

The next room was a combination art studio and a play area for kids under 4. Since there was plenty of wifi available in the building, my husband left me in here for a bit to go to the lobby and check his emails. Since Darija is only a few days short of three months, there really wasn't much she could DO. But, I decided to make a little paper project for Daddy, with her "supervising". I held up the different items and explained what they were. She loved the seahorse stencil I'd drawn. While there was plenty of paper, markers, and crayons out and about, I had a heluva time hunting down glue. I eventually found a staff member to replenish the glue container, but that delayed me more than I'd liked. By this time, Darija was hungry and began to fuss. When my husband returned and saw our little project, he was pleased to see it. I had him watch the stroller while I retreated to a quiet corner of the play area and nursed her for a bit. Amazingly enough, nobody bothered me, though one cute toddler walked over and handed me a toy. Guess she thought I needed something to play with.

Now fed, we proceeded to the next room. This room was a combination of things like permutations for cracking a safe, blowers with levitating balls, a prism, soundwaves, and a tubing setup that blew soft pompom-like balls all over the place. My favorite part of this exhibit was the prism, where I had to slide a diffuser and lenses to separate the red, green, and blue colors. It took a bit of trying, but I did it. Darija, on the other hand, was fascinated by the sound waves. She stared intently at the bitty plastic balls as they vibrated according to frequency and volume.

Prism (L), roller coaster (R), and Carl Sagan

After a short potty break, we visited trains. They had a model train with a camera mounted on it buzzing around the top of the room that I thought was cute. It certainly looked like a typical train that buzzes through on its way east from San Diego.

Choo-choo!

Steam locomotives poster

Little pulley cart

Modern diesel and electric locomotives

Last, but not least, was the biology exhibit. The best part of this exhibit (aside from the giant representations of body parts on the wall) was the pets room. There were posters showing the different breeds of cats, as well as the skeletal makeup of a cat. Since we have cats of our own, it's important that our children be familiar with their biological makeup. The main room in the exhibit was a mock grocery store, filled with fake foods for "purchase".

Daddy's Eye of Sauron

The mouth going "BLEHH!"


Finally, we ended our day in the tech room. This exhibit featured plenty of touchscreens to play on and explore. There was also a large cabinet filled with Mickey Mouse items (toys, books, figurines, etc) that didn't really seem to fit there. But, it was interesting to see how Mickey evolved through the decades.

By this point, we were both pretty tired from walking around, and the baby fell asleep from sheer exhaustion. Since the sky was getting dark and looking like it was gonna rain, we headed home to eat and rest.

She fell asleep like this just as I'd put her in the stroller and was about to buckle her in to leave

Thus ended our day at the museum. We'll definitely be coming back here as Darija gets older, and our family expands. It's well-worth the $2 admission.