Thought of the Day: Jaws

Our jaws can only bite upwards. So you can’t actually bite down.

The statement that our jaws can only bite upwards and cannot bite down is not entirely accurate. The human jaw is capable of both upward and downward movement, allowing us to close our mouths and exert force in both directions.

When we say “bite down,” we typically mean bringing the upper and lower teeth together, exerting force in a downward direction. This action involves the contraction of various muscles, including the masseter muscles, which are responsible for the closing of the jaw.

However, the bite force generated by the jaw is indeed generally stronger when biting upwards (e.g., chewing tough food) compared to biting downwards. This is due to the anatomical structure of the jaw and the arrangement of the muscles involved.

In summary, while biting upwards may exert more force, the human jaw is indeed capable of both upward and downward biting movements.

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This Day in History: April 16th

Here are ten historical events that took place on April 16th, listed in chronological order:

  1. 73 AD: The Roman fortress of Masada falls to the Roman army, ending the siege.
  2. 1457: The Gutenberg Bible, the first major book printed with movable type in the West, is completed.
  3. 1746: The Battle of Culloden, the final confrontation of the Jacobite rising of 1745, takes place in Scotland. It results in a decisive victory for the British government forces.
  4. 1862: During the American Civil War, the Battle of Fort Pillow occurs in Tennessee, with Confederate forces capturing the fort and killing many African American Union soldiers after they surrender.
  5. 1917: Vladimir Lenin returns to Petrograd, Russia, from exile, marking the beginning of the Bolshevik Revolution.
  6. 1943: Swiss chemist Albert Hofmann accidentally discovers the hallucinogenic effects of LSD (lysergic acid diethylamide).
  7. 1947: The cargo ship SS Grandcamp explodes in the harbor of Texas City, Texas, resulting in one of the largest non-nuclear explosions in history and causing extensive damage and casualties.
  8. 1963: Dr. Martin Luther King Jr. writes his “Letter from Birmingham Jail” in response to a public statement by eight white Alabama clergymen criticizing his nonviolent protests and civil rights activism.
  9. 1990: The Provisional Irish Republican Army (IRA) mistakenly targets the wrong person in a car bomb attack in County Fermanagh, Northern Ireland, killing seven construction workers.
  10. 2007: A gunman opens fire at the Virginia Tech campus in Blacksburg, Virginia, resulting in 32 deaths in what becomes one of the deadliest mass shootings in modern U.S. history.

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Thought of the Day: Eyes

When you close both of your eyes you see black, but when you close one you don’t see half black.

When you close both of your eyes, you perceive darkness because both eyes are essentially blocking out light. Your brain interprets this lack of visual input as darkness.

However, when you close only one eye, the other eye remains open and continues to receive visual input. The open eye continues to send signals to your brain, which interprets the visual information it receives. Therefore, you don’t perceive half of your visual field as black because your brain is still processing the visual input from the open eye, and you perceive whatever you’re looking at with that eye. The closed eye simply doesn’t contribute to the visual input being processed by your brain at that moment.

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This Day in History: April 12th

Here are ten historical events that took place on April 12th, listed in chronological order:

  1. 1204: The Fourth Crusade captures and sacks Constantinople, leading to the decline of the Byzantine Empire.
  2. 1606: The Union Flag (commonly known as the Union Jack) is adopted as the national flag of Great Britain.
  3. 1776: During the American Revolutionary War, North Carolina’s Fourth Provincial Congress adopts the Halifax Resolves, the first official action in the American Colonies calling for independence from Britain.
  4. 1861: The American Civil War begins as Confederate forces attack Fort Sumter in South Carolina.
  5. 1912: The RMS Titanic hits an iceberg and sinks in the North Atlantic Ocean, resulting in the deaths of more than 1,500 people.
  6. 1945: President Franklin D. Roosevelt dies of a cerebral hemorrhage in Warm Springs, Georgia, and is succeeded by Vice President Harry S. Truman.
  7. 1961: Soviet cosmonaut Yuri Gagarin becomes the first human to travel into space and orbit the Earth aboard Vostok 1.
  8. 1981: The first launch of the Space Shuttle, Columbia, marks the beginning of the Space Shuttle program.
  9. 1992: The Euro Disney Resort, later renamed Disneyland Paris, officially opens in Marne-la-Vallée, France.
  10. 2009: North Korea launches its Kwangmyŏngsŏng-2 rocket in defiance of international pressure, resulting in widespread condemnation.

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Nurse Jokes

Why did the nurse tiptoe past the medicine room?

Because she didn’t want to wake up the sleeping pills.

Doctor: “How’s the patient doing, the one who swallowed all the 20p coins?”

Nurse: “No change yet.”

Why do nurses always carry red crayons?

In case they need to draw blood.

Patient: “Does an apple a day really keep the doctor away?”

Nurse: “Yes, if you can aim it right.”

Why should you never upset a pediatric nurse?

Because they have very little patients.

Why was the nurse angry?

She ran out of patients.

Why are night nurses such bad dancers?

Their circadian rhythm is generally off.

What is it called when a hospital runs out of maternity nurses?

A mid-wife crisis.

I kept trying to play hide-and-seek when I was in the hospital but the nurses kept finding me in the ICU.

A nurse was late arriving at the hospital and after driving around the only parking spot she found was in the C section.

She had to climb out of the sunroof.

Never try lying to an X-ray technician.

They can see right through you.

Acupuncture.

What’s the point?

You should always be kind to nurses.

Remember they choose your catheter size.

Today’s jokes are dedicated to Cathy Shute.

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Thought of the Day: Daydreaming

Can you daydream at night?

Certainly! Daydreaming is typically associated with being lost in thought or imagination during waking hours, but there’s no reason why similar mental processes can’t occur during the night. When we’re asleep, our brains are still active, and dreaming is a form of mental activity that can involve imaginative scenarios, problem-solving, and even daydream-like experiences.

So, while we might not call it “daydreaming” since it’s happening at night, you can still experience similar imaginative or wandering thoughts during dreaming or even during periods of semi-consciousness between sleep stages. It’s all part of the rich tapestry of mental activity that occurs during sleep.

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