Showing posts with label food. Show all posts
Showing posts with label food. Show all posts

Thursday, August 18, 2011

How do clams reproduce?


Search
: oysters bivalves procreate



Why: On reddit, Oyster eggs:

Answer: Bivalves (clams, cockles, mussels, oysters, scallops, etc.) reproduce by external fertilization!

Marine bivalves reproduce by releasing prodigious numbers of eggs and sperm into the water, where external fertilization occurs. The fertilized eggs then float in the surface plankton.



Within 48 hours after fertilization, the embryo develops into a minute, planktonic, trochophore larvae. This stage is followed by another larval form, the veliger, which settles to the seabed and transforms into an adult.



In freshwater bivalves, the eggs are retained in the gill chambers of the female, where they undergo fertilization and develop into a peculiar larval form, the glochidium.



Upon its release, the larva attaches to passing fish, and lives as an ectoparasite for several weeks before settling.
Oyster eggs are commonly sold as food for coral in saltwater aquariums.



Source
: Science



The More You Know: But how do pearls form? First, anatomy:

Then (from HowStuffWorks):

As the oyster grows in size, its shell must also grow. The mantle is an organ that produces the oyster's shell, using minerals from the oyster's food. The material created by the mantle is called nacre. Nacre lines the inside of the shell.

­The formation of a natural pearl begins when a foreign substance slips into the oyster between the mantle and the shell, which irritate­s the mantle. It's kind of like the oyster getting a splinter. The oyster's natural reaction is to cover up that irritant to protect itself. The man­tle covers the irritant with layers of the same nacre substance that is used to create the shell. This eventually forms a pearl.

So a pearl is a foreign substance covered with layers of nacre. Most pearls that we see in jewelry stores are nicely rounded objects, which are the most valuable ones. Not all pearls turn out so well. Some pearls form in an uneven shape -- these are called baroque pearls. Pearls, as you've probably noticed, come in a variety of various colors, including white, black, gray, red, blue and green.

So basically, pearls are cysts that the oysters make to protect themselves from foreign objects. Some farmers even irritate their oysters on purpose to create "cultured pearls"!

Fun fact: Oysters are among the only frutti di mare that I don't eat.




Monday, August 8, 2011

How do you remove chewing gum from glass?


Search
: gum off a window



Why: I had an accident. Man, that new Mentos gum sure is sticky.

Answer: There are 4 ways!

  1. Use canned air. You can buy it at an office supply store to shoot dust and crumbs out of your keyboard. Blast some on the gum, and it should harden and pull right off.
  2. Freeze it. Rub an ice cube along the gum, holding it in place until the gum freezes and the ice cube melts. The gum should come right off.
  3. Zap it with bug and tar remover. Sold at auto supply stores, this stuff is designed to removed smushed bugs and tar.

  4. Use official gum-remover like they do at movie theaters. You can buy it at an industrial cleaning supply store.

Source: eHow



The More You Know: Canned air comes out at -26 degrees Celsius / -14.8 degrees Fahrenheit. Here's a list of 101 Things to Do with It!



Thursday, January 20, 2011

$trawberry fields forever


In these tough economic times, many families are forced to watch every penny they spend. Most of the money the average lower- or middle-class family earns today is spent on just the basic necessities -- food, clothing, shelter, and medical care. Whatever is left over (and often that is not very much) is either saved or spent on some minor "luxuries" like a car, education, a movie, or perhaps even a night out for entertainment.

We all know what happened to the affordable housing. When the country (led by benevolent banks and magical Wall St. financial tricks) went on a manic spree of morphing the basic need of shelter into another form of Texas Hold 'em, America almost ended up as a nation of 300,000,000 Tom Joads. Affordable basic medical care remains unavailable to a large swath of the country. But what if food becomes the next problem for the lower and middle classes? Not because of greedy banks or crooked insurance companies but because the cost of growing and harvesting makes the price of basics like lettuce, milk, and potatoes out of reach to all but the rich.

If the Teabaggers and others on the right have their way, it could. After all, $30 per head of lettuce is a small price to pay when you can feel so warm and fuzzy knowing that all the illegal migrant farm workers have been kicked out of the country.

The government estimates that 80% of all crop workers (the people who pick fruits and vegetables we find so easily in Whole Foods or other rip-off markets) are Hispanic and that half of them are illegal aliens. Other organizations that work directly with migrant workers claim that 90% of farm labor is illegal. Whichever is correct, it almost doesn't matter. No illegal aliens picking limes, no frozen margaritas for the pool party.

Not much has changed since John Steinbeck published The Grapes of Wrath in 1939, only the language.

Picking crops (especially strawberries and potatoes) is nothing short of tortuous hard labor in abominable conditions. The workers have to bend over all day and work through intense weather conditions. The tractors ride by all day collecting the harvest, often knocking down the pickers. Forcing one's body into awkward positions for extended periods of time causes intense joint and bone pain. The vines and plants they must touch are covered in pesticides. The air in hotter climes becomes stagnant and heat stroke is not uncommon. To keep their jobs, workers will pick crops even if the have the flu or gastro diseases or even if they are pregnant.

When the harvest is over, they must find another crop or go without work. Grape pickers earn about $8/ hour, without any overtime or benefits. From this meager salary they must pay rent, buy food, get babysitters, buy clothing for the fields, and take care of any medical needs. Since they are mostly "illegals," they live in the shadow of immigration and often don't seek medical attention when necessary. And they cannot protest the conditions or pay to their employers, as they have no rights. To avoid attention, these migrant workers rarely go into public and often do not send their kids (who might be American citizens under the 14th amendment) to school.

Their hell is your $1.99 iceberg lettuce.

And with the passage of SB 1070 in Arizona, hate towards migrant worker has increased dramatically.

With the country in a long economic slump, many Americans feel these illegals (along with the gardeners, pool caretakers, nannies, and others doing low-paying, labor-intensive jobs) are taking jobs away from Americans. To test that theory, the United Farm Workers ran a campaign called "Take Our Jobs" in the summer of 2010 with the goal of targeting "Americans" (read: white American citizens) to work in the fields. In the three months the campaign was active, 3,000,000 people visited the central website to respond.

Like those pesky visitors at home, the visitors to "Take Our Jobs" were beginning to reek of fish.

Of the visitors, over 40% left hate notes and email. Less than 9,000 (0.03%) stated they wanted to work as fruit and vegetable pickers. Of those 9,000, most demanded a certain number of "perks," like higher pay, benefits, education reimbursement, expense accounts, and 401Ks, before they would take the job. When the campaign was over in September, a grand total of seven people (read: non-illegal aliens) were out picking strawberries.

Does this surprise anyone? These are jobs Americans absolutely refuse to do. Do you think that such staunch anti-immigrant politicians as Jon Kyl would ever consider picking grapes or letting any of his children onto the fields? If Jim DeMint, Michele Bachmann, Steve King and other assorted Republicans and Teabaggers are so gung-ho on throwing out all the illegals, are they willing to subsidize the American public when they have to pay $60 for a lb. of Idahos at Publix or Shop-Rite? Do you think Bachmann even has thought of that? (Don't answer that. Bachmann has no thoughts, just evil energy.)

Even if they did subsidize the cost to consumers, I bet you still wouldn't be able to find more than seven Americans willing to pick the fruits and vegetables that will be served at the next Jan Brewer state dinner. But I bet Jan will have plenty of caviar and truffles.

I give you one guess as to who served those epicurean delights at the Brewer soiree.

"If there was a law, they was workin' with maybe we could take it, but it ain't the law. They're workin' away our spirits, tryin' to make us cringe and crawl, takin' away our decency." -- Tom Joad, played by Henry Fonda), in the movie The Grapes of Wrath (1940)