WYSJ-CD

Strength measurement explores why some things are stronger than others; examine rope, tractor, diamond, tugboat, and plastic strength from Spectra fiber to Lexan, discovering where, how, and why strength matters in daily life applications.

What does it take to rate as "the world's strongest"? Watch as life-saving boron carbide body armor, strong enough to stop 9mm machine gun bullets at point-blank range, is put to the test.

Pyroman the life-size mannequin is exposed to more than 1,000 degrees F; steel workers suit up to beat refinery heat; coffee makers and hair dryers malfunction at Underwriters Laboratories; a friction lab tests aircraft and race-car brakes.

Episode takes the "best of" Modern Marvels and give the mega top 10 countdown; on this edition: amazing weapons; they're every arsenal's best asset and every enemy's worst nightmare.

Mega stores are giant facilities engineered to keep up with America's supersized habits; they are the largest, busiest places in the country; their greatest challenge: keeping up with demand on a massive scale.

The fate of mankind's machinery of war; a sunken nuclear missile explodes; Pearl Harbor comes under new attacks; snow causes urban avalanches; dairy cows are threatened; events in Denver, Hawaii and a mysterious island near New York City.

The quest for immortality and what might happen to bodies left behind that were embalmed and buried, mummified or cryogenically frozen in a post-human world.

The fate of entombed treasures, including the contents of a mysterious "doomsday vault," the "Mona Lisa" and the Declaration of Independence; Philadelphia's Liberty Bell cracks for good; San Francisco cable cars and bridges snap.

Some apocalyptic fates of homes: Gas leaks turn suburbs into infernos, a hidden flaw topples a castle, and paint causes some high-end houses to explode in flames.

Earth is invaded by predatory forces; pythons that were formerly pets battle native alligators for domination in the Everglades; invasive plants strip oxygen from rivers and lakes; desert sandstorms invade Phoenix; Shanghai sinks.

Imagining the future of Chicago, Atlanta and London in a world devoid of people and being overtaken by the forces of nature.

The possible post-apocalyptic future of U.S. gambling meccas; a new rat pack takes over, wax figures of celebrities melt and iconic hotels crumble in Las Vegas; the ocean tears apart Atlantic City hotels, but the boardwalk stands fast.

Structures of God and symbols of Satan face their post-apocalyptic fate, as churches crumble and the devil's minions multiply.

The fate of mankind's machinery of war; a sunken nuclear missile explodes; Pearl Harbor comes under new attacks; snow causes urban avalanches; dairy cows are threatened; events in Denver, Hawaii and a mysterious island near New York City.

The quest for immortality and what might happen to bodies left behind that were embalmed and buried, mummified or cryogenically frozen in a post-human world.

The fate of entombed treasures, including the contents of a mysterious "doomsday vault," the "Mona Lisa" and the Declaration of Independence; Philadelphia's Liberty Bell cracks for good; San Francisco cable cars and bridges snap.

Some apocalyptic fates of homes: Gas leaks turn suburbs into infernos, a hidden flaw topples a castle, and paint causes some high-end houses to explode in flames.

Earth is invaded by predatory forces; pythons that were formerly pets battle native alligators for domination in the Everglades; invasive plants strip oxygen from rivers and lakes; desert sandstorms invade Phoenix; Shanghai sinks.

Imagining the future of Chicago, Atlanta and London in a world devoid of people and being overtaken by the forces of nature.

The possible post-apocalyptic future of U.S. gambling meccas; a new rat pack takes over, wax figures of celebrities melt and iconic hotels crumble in Las Vegas; the ocean tears apart Atlantic City hotels, but the boardwalk stands fast.

Structures of God and symbols of Satan face their post-apocalyptic fate, as churches crumble and the devil's minions multiply.

The fate of mankind's machinery of war; a sunken nuclear missile explodes; Pearl Harbor comes under new attacks; snow causes urban avalanches; dairy cows are threatened; events in Denver, Hawaii and a mysterious island near New York City.

The quest for immortality and what might happen to bodies left behind that were embalmed and buried, mummified or cryogenically frozen in a post-human world.

The fate of entombed treasures, including the contents of a mysterious "doomsday vault," the "Mona Lisa" and the Declaration of Independence; Philadelphia's Liberty Bell cracks for good; San Francisco cable cars and bridges snap.

Some apocalyptic fates of homes: Gas leaks turn suburbs into infernos, a hidden flaw topples a castle, and paint causes some high-end houses to explode in flames.

Earth is invaded by predatory forces; pythons that were formerly pets battle native alligators for domination in the Everglades; invasive plants strip oxygen from rivers and lakes; desert sandstorms invade Phoenix; Shanghai sinks.

Imagining the future of Chicago, Atlanta and London in a world devoid of people and being overtaken by the forces of nature.

Michelangelo is one of the most famous artists in history, and managed to paint a bunch of naked dudes 60 feet in the air on the ceiling of the Sistine Chapel; Nate takes a look at the science behind fresco painting.

Moons of the gas giants, each is a unique and mysterious world of its own; some have oceans of water, geysers of Sulphur or atmospheres of plastic.

University student garden; green development; new green products.

The team attempts to build the Roman crane.

The story of the ups and downs in the life of poet T.S. Eliot, whose work would become the basis for "Cats," one of the most successful musicals of all time.

Bonnie and Clyde are killed in an ambush set up by the Texas Highway Patrol.

The ten most explosive and expensive breakups of the past decade.

How Playboy magazine changed the world and its continued impact on people's daily lives.

Italian immigrant and sometime gigolo Rudolph Valentino becomes the first Hollywood superstar.

Profile of Casanova, the legendary king of sexual seduction who also was a skilled writer and diplomat.

With a life as compelling as any of her best-sellers, Danielle Steel has had a roller coaster ride of professional success and personal tragedy.

The story of the ups and downs in the life of poet T.S. Eliot, whose work would become the basis for "Cats," one of the most successful musicals of all time.

Bonnie and Clyde are killed in an ambush set up by the Texas Highway Patrol.

The ten most explosive and expensive breakups of the past decade.

How Playboy magazine changed the world and its continued impact on people's daily lives.

Italian immigrant and sometime gigolo Rudolph Valentino becomes the first Hollywood superstar.

Profile of Casanova, the legendary king of sexual seduction who also was a skilled writer and diplomat.

With a life as compelling as any of her best-sellers, Danielle Steel has had a roller coaster ride of professional success and personal tragedy.

The story of the ups and downs in the life of poet T.S. Eliot, whose work would become the basis for "Cats," one of the most successful musicals of all time.

Bonnie and Clyde are killed in an ambush set up by the Texas Highway Patrol.

The ten most explosive and expensive breakups of the past decade.

How Playboy magazine changed the world and its continued impact on people's daily lives.

On April 7, 2004, a group of U.S. Marines got ambushed near Fallujah, Iraq; together, the Marines fight on, making 1st Reconnaissance Battalion, Bravo Company, 2nd Platoon one of the most decorated platoons for heroism in the War on Terror.

In Iraq, a team of U.S. Army Rangers leads a covert operation to take out high value targets; deep in enemy territory, it's the implicit trust among team members that allows them overcome hurdle after hurdle.

A platoon loses both 19-year-old Pvc. Eric Hario and seasoned Staff Sgt. Jason Dahlke on a battle damage assessment mission in Afghanistan; life will never be the same for the Army Rangers or for Eric and Jason's family members back home.

U.S. Army Ranger Trent McDonald becomes renowned for his dog whispering skills; McDonald loses his best friend and military service dog, Benno, on a night raid in Afghanistan in 2012, then his new dog, Layka, gets shot weeks later while saving lives.

One of the first veterans helped by Jim and Lindsey spirals back into depression; another veteran's family struggles to adjust to life with a service dog.

A war veteran suffering from post-traumatic stress disorder as a result of a combat explosion hopes that a shelter dog from Paws and Stripes can help alleviate his night terrors.

A young wife and mother who served as a prison guard in Iraq is matched with a service dog; Jim tries to find the proper placement for a fun-loving canine.

A former soldier who disarmed explosives in Iraq tries to hide his symptoms of post-traumatic stress disorder and his troubles with alcohol.

On April 7, 2004, a group of U.S. Marines got ambushed near Fallujah, Iraq; together, the Marines fight on, making 1st Reconnaissance Battalion, Bravo Company, 2nd Platoon one of the most decorated platoons for heroism in the War on Terror.

In Iraq, a team of U.S. Army Rangers leads a covert operation to take out high value targets; deep in enemy territory, it's the implicit trust among team members that allows them overcome hurdle after hurdle.

A platoon loses both 19-year-old Pvc. Eric Hario and seasoned Staff Sgt. Jason Dahlke on a battle damage assessment mission in Afghanistan; life will never be the same for the Army Rangers or for Eric and Jason's family members back home.

U.S. Army Ranger Trent McDonald becomes renowned for his dog whispering skills; McDonald loses his best friend and military service dog, Benno, on a night raid in Afghanistan in 2012, then his new dog, Layka, gets shot weeks later while saving lives.

One of the first veterans helped by Jim and Lindsey spirals back into depression; another veteran's family struggles to adjust to life with a service dog.

A war veteran suffering from post-traumatic stress disorder as a result of a combat explosion hopes that a shelter dog from Paws and Stripes can help alleviate his night terrors.

A young wife and mother who served as a prison guard in Iraq is matched with a service dog; Jim tries to find the proper placement for a fun-loving canine.

A former soldier who disarmed explosives in Iraq tries to hide his symptoms of post-traumatic stress disorder and his troubles with alcohol.

On April 7, 2004, a group of U.S. Marines got ambushed near Fallujah, Iraq; together, the Marines fight on, making 1st Reconnaissance Battalion, Bravo Company, 2nd Platoon one of the most decorated platoons for heroism in the War on Terror.

In Iraq, a team of U.S. Army Rangers leads a covert operation to take out high value targets; deep in enemy territory, it's the implicit trust among team members that allows them overcome hurdle after hurdle.

A platoon loses both 19-year-old Pvc. Eric Hario and seasoned Staff Sgt. Jason Dahlke on a battle damage assessment mission in Afghanistan; life will never be the same for the Army Rangers or for Eric and Jason's family members back home.

U.S. Army Ranger Trent McDonald becomes renowned for his dog whispering skills; McDonald loses his best friend and military service dog, Benno, on a night raid in Afghanistan in 2012, then his new dog, Layka, gets shot weeks later while saving lives.

One of the first veterans helped by Jim and Lindsey spirals back into depression; another veteran's family struggles to adjust to life with a service dog.

A war veteran suffering from post-traumatic stress disorder as a result of a combat explosion hopes that a shelter dog from Paws and Stripes can help alleviate his night terrors.

A young wife and mother who served as a prison guard in Iraq is matched with a service dog; Jim tries to find the proper placement for a fun-loving canine.

A former soldier who disarmed explosives in Iraq tries to hide his symptoms of post-traumatic stress disorder and his troubles with alcohol.

America's first black regiment, the 54th Massachusetts, fights at Fort Wagner.

The Tuskegee Airmen of World War II.

Exploring the legacy of the Tuskegee Airmen, the legendary group of African American pilots, revealing how these warriors for change helped end segregation in the military and pave the way for the civil rights movement.

A history of black fliers.

George Washington Carver rose from slavery to become one of the 20th century's greatest scientists; at Tuskegee Institute, he invented over 300 peanut uses, developed crop rotation, and changed rural economy through agricultural innovations.

Renowned for his chocolate chip cookies, Wally Amos led many lives; a look back at his years as the first Black talent agent at the William Morris Agency, the rise and fall of his cookie business and his difficult relationships with his family.

The story of Dr. Mae Jemison, the first African-American woman to travel in space, with clips of her at work on her experiments.

Heart surgeon Dr. Levi Watkins.

America's first black regiment, the 54th Massachusetts, fights at Fort Wagner.

The Tuskegee Airmen of World War II.

Exploring the legacy of the Tuskegee Airmen, the legendary group of African American pilots, revealing how these warriors for change helped end segregation in the military and pave the way for the civil rights movement.

A history of black fliers.

George Washington Carver rose from slavery to become one of the 20th century's greatest scientists; at Tuskegee Institute, he invented over 300 peanut uses, developed crop rotation, and changed rural economy through agricultural innovations.

Renowned for his chocolate chip cookies, Wally Amos led many lives; a look back at his years as the first Black talent agent at the William Morris Agency, the rise and fall of his cookie business and his difficult relationships with his family.

The story of Dr. Mae Jemison, the first African-American woman to travel in space, with clips of her at work on her experiments.

Heart surgeon Dr. Levi Watkins.

America's first black regiment, the 54th Massachusetts, fights at Fort Wagner.

The Tuskegee Airmen of World War II.

Exploring the legacy of the Tuskegee Airmen, the legendary group of African American pilots, revealing how these warriors for change helped end segregation in the military and pave the way for the civil rights movement.

A history of black fliers.

George Washington Carver rose from slavery to become one of the 20th century's greatest scientists; at Tuskegee Institute, he invented over 300 peanut uses, developed crop rotation, and changed rural economy through agricultural innovations.

Renowned for his chocolate chip cookies, Wally Amos led many lives; a look back at his years as the first Black talent agent at the William Morris Agency, the rise and fall of his cookie business and his difficult relationships with his family.

The story of Dr. Mae Jemison, the first African-American woman to travel in space, with clips of her at work on her experiments.

Heart surgeon Dr. Levi Watkins.

When it comes to throwing parties, history's richest figures have always picked going big over going home; meeting the mega-millionaires who hosted parties so epic that they're still being talked about today.

For the richest people to ever live, no price is too high to pay for an object of desire, no matter how expensive or strange it may be; fine art, rare books, and extremely large coconuts are all on display.

Lavish dining is the epitome of living it up, and these are the mega-moneyed gourmands who spent jaw-dropping sums in pursuit of the rarest, the richest, and the most forbidden food and drink money could buy.

The prized possessions of some of history's richest people haven't been castles, jewels, or fine art, but something more exotic, with the ability to bite back; meeting the monarchs and millionaires who spent their fortunes collecting wild animals.

Gold has always been the ultimate status symbol; for these ancient figures, acquiring and spending huge stockpiles of gold was an all-consuming passion.

No problem has loomed larger for history's crazy rich than how to keep themselves and their multi-million dollar homes safe and secure; these three figures broke the bank on security features designed to prevent break-ins.

The homes of rich people have high expectations, and the homes of extremely rich people have even higher expectations; the ancient rich built palaces that became some of the largest, most luxurious buildings on Earth.

The ancients realized they were destined to spend more time in the tomb than the throne room and spent big to build luxurious final resting places for themselves and their loved ones.

The average American couple will drop five figures on their wedding, but that wouldn't even begin to cover the tab that these big spending couples racked up while throwing history's most baller nuptial celebrations.

Meeting the ancients who bankrolled the construction of massive churches and temples in an attempt to buy their way past the pearly gates.

Whether it's private planes, private trains or gold-plated limousines, the mega-rich have always flaunted their wealth by buying luxury vehicles, even when the only vehicles to buy were boats, chariots and horse-drawn carriages.

The richest people who have ever lived had the resources and power to build entire cities from scratch.

Alexander the Great; Genghis Khan; Suleiman the Magnificent; King Louis XIV; Peter the Great; Napoleon.

Ten tyrants who ruled the ancient world, including Julius Caesar and Cleopatra.

When it comes to throwing parties, history's richest figures have always picked going big over going home; meeting the mega-millionaires who hosted parties so epic that they're still being talked about today.

For the richest people to ever live, no price is too high to pay for an object of desire, no matter how expensive or strange it may be; fine art, rare books, and extremely large coconuts are all on display.

Lavish dining is the epitome of living it up, and these are the mega-moneyed gourmands who spent jaw-dropping sums in pursuit of the rarest, the richest, and the most forbidden food and drink money could buy.

The prized possessions of some of history's richest people haven't been castles, jewels, or fine art, but something more exotic, with the ability to bite back; meeting the monarchs and millionaires who spent their fortunes collecting wild animals.

Gold has always been the ultimate status symbol; for these ancient figures, acquiring and spending huge stockpiles of gold was an all-consuming passion.

No problem has loomed larger for history's crazy rich than how to keep themselves and their multi-million dollar homes safe and secure; these three figures broke the bank on security features designed to prevent break-ins.

The homes of rich people have high expectations, and the homes of extremely rich people have even higher expectations; the ancient rich built palaces that became some of the largest, most luxurious buildings on Earth.

The ancients realized they were destined to spend more time in the tomb than the throne room and spent big to build luxurious final resting places for themselves and their loved ones.

The average American couple will drop five figures on their wedding, but that wouldn't even begin to cover the tab that these big spending couples racked up while throwing history's most baller nuptial celebrations.

Meeting the ancients who bankrolled the construction of massive churches and temples in an attempt to buy their way past the pearly gates.

Whether it's private planes, private trains or gold-plated limousines, the mega-rich have always flaunted their wealth by buying luxury vehicles, even when the only vehicles to buy were boats, chariots and horse-drawn carriages.

The richest people who have ever lived had the resources and power to build entire cities from scratch.

Alexander the Great; Genghis Khan; Suleiman the Magnificent; King Louis XIV; Peter the Great; Napoleon.

Ten tyrants who ruled the ancient world, including Julius Caesar and Cleopatra.

When it comes to throwing parties, history's richest figures have always picked going big over going home; meeting the mega-millionaires who hosted parties so epic that they're still being talked about today.

For the richest people to ever live, no price is too high to pay for an object of desire, no matter how expensive or strange it may be; fine art, rare books, and extremely large coconuts are all on display.