Free Online Hearing Screening Test

On the TrueSound website, it offers a free online hearing screening test that you can take in the comforts of your own home.  You don’t need to submit any personal information as long as you checkmark the opt-out checkbox at the end of the test.  You have to get 70% or better to pass.  Best if you use headphones.

Here is a video by ASAPScience that test hearing of different frequencies. As you age, you lose hearing of high frequencies first.

Walking after eating helps with blood sugar spike writes …

“Researchers studying older adults with pre-diabetes found that 15 minutes of easy-to-moderate exercise after every meal curbed risky blood sugar spikes all day” has article writes …

“a short walk after dinner was much more effective at lowering blood sugar levels than a longer one earlier in the day”


This is good news for those trying to control their diabetes or blood sugar.

For those who are testing their blood sugar can perform some measurement to see the difference in blood sugar spike with and without walking after similar meals at same time of day.


What is an Amber Alert?

According to Wikipedia, AMBER alert stands for …

“America’s Missing: Broadcasting Emergency Response, but was named for Amber Hagerman, a 9-year-old abducted and murdered in Arlington, Texas, in 1996.” says …

“The AMBER Alert Program is a voluntary partnership between law-enforcement agencies, broadcasters, transportation agencies, and the wireless industry, to activate an urgent bulletin in the most serious child-abduction cases.”


If you just type “amber alert” into Google, Google will show you the latest amber alert in your area if any. Google knows the general location where you are surfing the web from, so it can display amber alerts in your area.

You can get a more generalized view of more amber alerts at

Or see the latest Amber alerts at

Sometimes amber alerts will sometimes display on smart phone such as Android and iPhones.  They are broadcasted over freeway signs, radio, and television.

“ABC” poem with each word starting with letter of alphabet in order

The poem “ABC” by Robert Pinsky has 26 words exactly (not including the title).  Each words starts with a letter of the alphabet in order.  The first words starts with “A”.  The second word starts with “B”.  The third word starts with “C”.  And so on, until the last word which starts with “Z”.   You can read/see the poem on The New York Review of Books.

What is the difference between lamb versus sheep?

Sheep is the animal.  Lamb is the meat from a sheep served as food.

Just like pork the the meat from a pig served as food.

Most people consider beef as meat from a cow.  While this is certainly the most common case, it need not be the only case.  Beef is the meat of a bovine, especially cattle.   Cow is just a colloquial term for cattle.  A bovine is a biological subfamily that includes animals such as domestic cattle, bison, African buffalo, the water buffalo, the yak, and the four-horned and spiral-horned antelopes.     So beef can be from a yak, for example.

Steak is often beef, but not necessarily.  You can have a steak of tuna, a steak of pork, or a steak of lamb, etc.  Steak is a cut of meat cut perpendicular to the muscle fiber.

Calf is a young (juvenile) domestic cattle.  Veal is the meat of calves.

So now you know.



How High is the Death Zone?

At 8000 meters, or 26,000 feet, mountaineers call this the “death zone” at which the amount of oxygen is so low that no humans would be able to stay above this zone for too long.  Because it is less than 356 millibars of atmospheric pressure there, the human body is not able to acclimate to it and get enough oxygen saturation in the hemoglobin of the blood.

For comparison, Mount Everest base camp is around 17,000 feet.  There are two Everest base camps.  And the summit of Everest is at 29,000 feet — above the death zone.

What are Hanging Coffins?

What are hanging coffins?  Hanging coffins are real coffins where the deceased are placed inside.  Except that instead of being buried in the ground, they are hung on cliffs.  These can be found in some parts of China, Indonesia, and the Philippines.

Some are cantilevered out on wooden stakes. Some are placed in caves.  And sometimes they sit on projections in the rock.

Some theorize that it puts the deceased closer to heaven.  This practice was believed to have started way back in 8th century BC.  But is not really practiced today.  As you can guess, it would have taken a bit of work to put them up there.

See article here and picture on wikipedia

Why we have the saying “Sweating like a pig” when pigs do not sweat?

Pigs do not sweat because they do not have sweat glands (well maybe just a few).  So where did the saying “sweating like a pig” come from?

The pig in the saying is not the animal pig, but the pig iron in iron smelting.  When the hot iron pigs are dumped into the sand, moisture appears on the iron pigs due to the cooling effect and the air reaching its dew point.

This moisture appearing, known as the pig sweating, means that the iron pigs are cool enough to be moved.