Sunday, February 26, 2023

13 Things NOT To Put In The Microwave

Microwave ovens—you will find them in almost every residence whether house, condominium, apartment or college dorm room.  They are also in many places of business, both for use by employees only and for use by the public.  Those for consumer use come in various sizes and power from the small .7 cu. ft. 700 watt dorm room size to those large enough to hold a turkey with a power rating of 1250 watts or higher.  They can be counter top models, installed under a cupboard, or above/part of the stove.

The first microwave oven was invented after World War II from radar technology developed during the war. The Radarange, as it was called, was first sold in 1946 but was prohibitively large and much too expensive for all but the largest of commercial applications.  The home-use microwave oven was introduced in 1955, but was still too large and expensive for general home use. The practical countertop home-use microwave oven was introduced in 1967. For those of us 'older' folks, we quickly adapted to their use.  The younger among us grew up with them.

This list of 13 relates to specific dangers from trying to heat certain items in your microwave.  I imagine we've all learned the hard way (no pun intended) what happens when we try to microwave bread-type products rather than heating them some other way.  That one is not dangerous, but it dries out the bread and when the items start to cool they become too hard to eat. This problem is helped by wrapping the bread item in a damp paper towel.

1)  Aluminum Foil—we all know that one, it literally catches on fire.

2)  Stainless Steel—we all know not to put our metal pots and pans in the microwave.  That also includes our stainless steel travel coffee mugs.  In addition to possible harm to the microwave, the metal blocks the waves so it won't heat your cold coffee anyway.

3)  Plastic Storage Containers—these contain chemicals that could be toxic, or at the least alter the taste of the food you are reheating. Check the product label as some type of plastic containers can be microwaved.

4)  Chinese Take-Out Cartons—the metal handles on the carton are dangerous and the cartons themselves contain plastic.

5)  Styrofoam—this is plastic, but these days there are some Styrofoam products that can be put into the microwave.

6)  Raisins—these smoke when heated in a microwave.

7)  Grapes—if raisins are bad, it follows that the fruit that gives us raisins are also a microwave no-no.  The grapes will catch fire.

8)  Plastic Bags—the type retail stores use to bag your purchases in addition to the more heavy-duty storage type.  These are toxic and can catch fire.

9)  Brown Paper Bags—these are as dangerous in the microwave as the plastic bags the stores use.

10)  Eggs—if in the shell, they will explode.

11)  Dried Hot Peppers—chemicals are released.

12)  Sauce/Soup—without a lid, it will splatter all over the inside of the oven and create a messy cleanup.

13)  Nothing—to run an empty microwave can harm the appliance as there's nothing there containing water molecules for it to absorb. 

Sunday, February 19, 2023

Antarctica’s Blood Red Waterfall

A few years ago, I saw a photograph somewhere (probably in a magazine) showing a red waterfall flowing out of an Antarctic glacier. It piqued my curiosity and I eventually looked into what it really was with the results coming as a surprise.

One of the world's most extreme deserts is probably the last place anyone would expect to find a waterfall. However, in Antarctica's McMurdo Dry Valley, a five-story waterfall pours slowly out of the Taylor Glacier into Lake Bonney. And it's not just the idea of a flowing waterfall in the frozen world of Antarctica that's strange. The waterfall is bright red, resembling blood running from a cut in the glacier.

Before you start scratching your head and wondering how that's possible—it's obviously not blood that lends Blood Falls its unique red color. Five million years ago, sea levels rose resulting in the formation of a salty lake in East Antarctica. Millions of years later, glaciers formed on top of the lake, cutting it off from the rest of the Antarctic continent, which makes the water in Blood Falls an aqueous time capsule preserved 400 meters (1300 feet) underground. As the glaciers on top of the lake began to freeze, the water below became even saltier. Today, the salt content of the subglacial lake under Blood Falls is three times saltier than seawater which makes it too salty to freeze. The subglacial lake that feeds Blood Falls is trapped beneath a quarter mile of ice.

But in addition to being cut off from the rest of the continent, the water that feeds Blood Falls is completely cut off from the atmosphere—it has never seen sunlight and is completely devoid of oxygen. It's also extremely rich in iron. And it's that iron, scraped into the water by glaciers sliding across the bedrock below the lake, that's responsible for the red color. When water from the subglacial lake seeps through a fissure in the glacier, the salty water cascades down the Taylor Glacier into Lake Bonney below. When the iron-rich water comes into contact with the air, it rusts which stains the ice a blood red color as it falls.

The color of Blood Falls isn't the only weird thing about it. What lives inside the subglacial lake interests scientists more than the waterfall's creepy color. Millions of years ago, when those glaciers covered the salt lakes, there were microbes living in the water, and those microbes haven't gone anywhere, even though the water is now an extremely salty, oxygen-free bowl of complete darkness buried 400 meters under a glacier. Much like bacteria found living near deep sea thermal vents, the microbes of Blood Falls get their energy from breaking apart sulfates which contain oxygen. After that, something eerily magical happens with the by-products—the iron in the water interacts with the microbes to restore the sulfates, basically recycling the sulfates for the microbes to break down into oxygen over and over again. Possibly a life form to be considered immortal.

If you're thinking about visiting Blood Falls, McMurdo Dry Valley and the Blood Falls can only be reached by helicopter from nearby Antarctic research stations or from cruise ships visiting the Ross Sea. 

Sunday, February 12, 2023

The History of Mardi Gras and the Tradition Of Flashing

This year Mardi Gras falls on Tuesday, February 21, 2023. In the Catholic Church, it's Shrove Tuesday, also known as Fat Tuesday. The date for Mardi Gras depends on the date of Easter—always occurring forty-six days before Easter.

In the most literal sense, the Mardi Gras celebration is the three days prior to the start of Lent on Ash Wednesday. It's the last opportunity for partying and indulgence in food and drink. In practice, Mardi Gras—or Carnival, as it is called in many countries—is usually celebrated for a full week before the start of Lent.

Celebrations take place all over the world with the most famous modern day festivities being in New Orleans, Louisiana; Rio de Janeiro, Brazil; Nice, France; and Cologne, Germany.

Even though Mardi Gras is a Christian festival, it dates back to the pre-Christian spring fertility rites and embodies many of the traditions of the ancient Greeks and Romans. In the early Middle Ages, after converting pagan tribes to Christianity, the Catholic Church was still unable to abolish all the ancient traditions. To combat this, the Church ended up taking many ancient feasts and festivals originally celebrated in honor of pagan gods and adapted them to Christian beliefs. An example of the pagan roots—today revelers on parade floats still dress as Bacchus, the Greek god of wine.

The first Mardi Gras celebration in the United States was near modern day New Orleans on March 3, 1699, but it was the mid 1800s before parade organizations, known as krewes, came into being. The first Mardi Gras parade was held in New Orleans on February 24, 1854, by the Krewe of Comus. They began the tradition of a parade with floats followed by a ball for the krewe and their guests. The official colors of Mardi Gras were chosen by Rex, King of Carnival, in 1892 and given their meaning—purple for justice, green for faith, and gold for power.

But what about that popular activity that has become a seemingly integral part of the New Orleans Mardi Gras, much to the chagrin of the festival purists? Women pulling up their shirts and flashing their bare breasts to procure some worthless plastic beads?

Exactly where did this tradition come from?

Well, first of all, it's not really a tradition. It's more along the lines of what has become a traditional activity in the same vein as getting stupid drunk and passing out now seems to fall into that same 'traditional' category. Over the years more and more media attention has been directed toward the drunken revelry that occurs on Bourbon Street which has helped in defining flashing as a traditional part of the Mardi Gras celebration.

Fortunately, or unfortunately depending on your point-of-view, flashing in exchange for beads is mostly limited to the New Orleans' French Quarter. And even in the French Quarter, it's an illegal activity. Women flashing their bare breasts run the risk of being arrested.

Maybe flashing is not a true tradition, but you can't deny that it has become a custom. After all, the history of wild Mardi Gras behavior comes from celebrating the last day before Lent—Lent being a time of atonement. And this naturally lends itself to activities of excess and craziness.

Which apparently has come to include flashing.

But there is one crazy excess even more daring than the momentary baring of the female breasts known as flashing. And what, you may ask, could possibly be crazier than flashing and still be done in public? And the answer is having clothes painted on your bare skin. There are artists who specialize in this. It probably started as something simple and basic like face painting but has grown to include full body artistic renderings. At a casual glance, it appears that the person is clothed (albeit skin tight clothing). But on closer inspection, you discover that's far from the truth. Some of these examples shown below are basic and others are quite elaborate. 

Sunday, February 5, 2023

The History of Valentine's Day

Every February candy, flowers, and gifts are exchanged between loved ones, all in the name of St. Valentine. But who is this mysterious saint and why do we celebrate this holiday? The history of Valentine's Day and its patron saint is shrouded in mystery. St. Valentine's Day, as we know it today, contains vestiges of both Christian and ancient Roman tradition. So, how did St. Valentine become associated with this ancient rite?

One legend contends that Valentine was a priest who served during the third century in Rome. When Emperor Claudius II decided that single men made better soldiers than those with wives and families, he outlawed marriage for young men—his pool of potential soldiers. Valentine, realizing the injustice of the decree, defied Claudius and continued to perform secret marriages for young lovers. When Valentine's actions were discovered, Claudius ordered him put to death.

Other stories suggest that Valentine may have been killed for attempting to help Christians escape harsh Roman prisons where they were often beaten and tortured.

According to one legend, Valentine actually sent the first 'valentine' greeting himself.  While in prison, it is believed that Valentine fell in love with a young girl who visited him during his confinement who may have been his jailor's daughter. Before his death, it is alleged that he wrote her a letter, which he signed 'From your Valentine,' an expression that is still in use today.

Although the truth behind the Valentine legends is murky, the stories certainly emphasize his appeal as a sympathetic, heroic, and most importantly as a romantic figure. It's no surprise that by the Middle Ages, Valentine was one of the most popular saints in England and France.

While some believe that Valentine's Day is celebrated in the middle of February to commemorate the anniversary of Valentine's death or burial which probably occurred around 270 A.D., others claim that the Christian church may have decided to celebrate Valentine's feast day in the middle of February in an effort to Christianize celebrations of the pagan Lupercalia festival. In ancient Rome, February was the official beginning of spring and was considered a time for purification. Houses were ritually cleansed by sweeping them out then sprinkling salt and a type of wheat called spelt throughout their interiors. Lupercalia, which began at the ides of February, February 15, was a fertility festival dedicated to Faunus, the Roman god of agriculture, as well as to the Roman founders Romulus and Remus.

Around 498 A.D., Pope Gelasius declared February 14 to be St. Valentine's Day. Later, during the Middle Ages, it was commonly believed in France and England that February 14 was the beginning of the mating season for birds, which added to the idea that the middle of February should be a day for romance.

The oldest known valentine still in existence today was a poem written by Charles, Duke of Orleans, to his wife while he was imprisoned in the Tower of London following his capture at the Battle of Agincourt. The greeting, which was written in 1415, is part of the manuscript collection of the British Library in London, England. Several years later, it is believed that King Henry V hired a writer named John Lydgate to compose a valentine note to Catherine of Valois.

In Great Britain, Valentine's Day began to be popularly celebrated around the seventeenth century. By the middle of the eighteenth century, it was common for friends and lovers in all social classes to exchange small tokens of affection or handwritten notes. By the end of the century, printed cards began to replace written letters due to improvements in printing technology. Ready-made cards were an easy way for people to express their emotions in a time when direct expression of one's feelings was discouraged. Cheaper postage rates also contributed to an increase in the popularity of sending Valentine's Day greetings. Americans probably began exchanging hand-made valentines in the early 1700s. In the 1840s, Esther A. Howland began to sell the first mass-produced valentines in America. Valentine's Day is the second largest card-sending holiday of the year with Christmas being the highest.

Approximately 85 percent of all valentines are purchased by women. In addition to the United States, Valentine's Day is celebrated in Canada, Mexico, the United Kingdom, France, and Australia.