The narrator introduces puffer fish, their habitat, and their predators. He explains the unique characteristics of the puffer: it gulps water until it resembles a beach ball. It does this to protect itself from predators and to protect predators from itself, as it is poisonous.
Simon's cat employs a variety of creative techniques to get Simon's attention so he can be let into the house. After the cat gets into the house, Simon closes the door, and the glass on the door shatters due to the damage done by the cat's efforts to get inside.
Spider-Man confronts Electro at a power grid. Initially, he has the upperhand in the fight, but Electro eventually overwhelms him with his electric attacks and speed. Spider-Man is saved by Gwen Stacy.
A boy and his robot are good friends that play together. After a year, their friendship starts to fade, and the boy pays less attention to the robot. The boy gets increasingly frustrated with the robot whenever it wants his attention, ultimately throwing it in the closet. After a nightmare, the boy realizes he's losing a great friend and reconnects with his old friend.
Two insects help a caterpillar begin her metamorphosis. They try several strategies and finally manage to get her into the cocoon. Once she's in the cocoon, they use more creative strategies to provide the environment she needs to morph into a beautiful butterfly.
Sean trips, and his knife falls out of his pocket. He notices that the knife floats in mid-air and checks his compass to find that it isn't working, meaning there is a magnetic field in the area. He travels to the other side of a large opening using large rocks suspended in air, with many close calls during his journey.
Sheldon explains how he uses a toy train and a ball to prove Newton's first law of motion. As the train moves, he pushes a button to propel the ball in the air. The ball lands in the same spot on the train where it was propelled. The ball moves at a constant velocity in an inertial frame of reference.
The Ares III crew successfully rescues Mark Watney from Mars. During the rescue operation, Mark and Melissa spin uncontrollably due to the lack of air resistance and thus friction in this demonstration of Newton's laws of motion.
Mr. Bean is excited by a Van der Graaf generator and uses it after he sees how it affects a woman's hair. When he uses it, the generator doesn't seem to be working on his hair; however, it leaves static electricity on his hands that persists for quite a while, causing problems when picking up a piece of paper.
Mr. Wizard demonstrates the difference between steam and water vapor to Billy using a teapot and flames. He explains that steam is the gas form of water and that we mistakenly refer to water vapor as steam in everyday conversation.
Rita Braver and historian David McCullough discuss the story of the Wright Brothers, who first successfully created and flew the first airplane. They talk about their personal lives, their sister, and the sacrifices they made to make aviation a possibility.
The narrator explains how sedimentary rocks form: from sediment deposited in water through the process of weathering and erosion. He also explains the layers of sedimentary rock, which include sandstone, limestone, and conglomerates.
Mr. Snatcher and his subordinates search for the boxtrolls by hitting boxes and seeing which ones respond to the impact. A couple of boxtrolls escape capture and flee to their underground civilization.
This clip takes us into the microscopic world through a series of steps, with each step being 10x smaller than the previous. It illustrates the microorganisms that exist in drop of water and the components of those organisms, including DNA and atoms.
This clip takes us into the universe through a series of steps, with each step being 10x larger than the previous. It illustrates the vastness of the universe and that increasing the field of view by a power of 10 makes a dramatic change in what we see.
Carl meets with Westly Parker, vice president of Brea Federal Savings, who promotes him based on his excellent performance as a loaner. The bank traditionally doesn't give out micro loans, but their repayment rate is extremely high, and the bank benefits as a result.
Pat decides to search for his wedding video early in the morning and becomes increasingly angry and frustrated at his parents because he believes they hid it from him. Pat shows symptoms of bipolar disorder.
Neil deGrasse Tyson explains the difference between climate and weather while walking on a beach with a dog. He mentions that climate is the weather of a region over a long period of time, while weather is short-term. He uses the dog's path to illustrate the variance of weather patterns and his own path to illustrate the consistency of climate.
The Winklevoss twins tell Mark about their new project with the hope of recruiting him, as they need his technical skills. Mark appears to not be thinking much about their proposal but agrees to accept it and work with them.
The pyramid is collapsing, and Rick and Imhotep are in a perilous situation. Despite the dangerous environment, Evelyn risks her life to save Rick, while Anck Su Namun makes the decision to save herself and leave Imhotep.
After a long war, the Scorpion King and his army travel through the desert. One by one, they succumb to its unforgiving environment until only the Scorpion King is left. He makes a pact with Anubis to spare his life.
Economic Environment →
Supply and Demand
A seller of hula hoops finds that no one is purchasing his items, so he lowers the price in an attempt to increase demand. His price changes don't make a difference. When a boy finds a stray hula hoop and plays with it in front of his peers, all of the kids suddenly want one, and the hula hoop becomes a desireable product.
The crew explores a geocode 700 miles under the surface of the Earth. As they start cutting one of the crystals, the protective shell breaks, and lava flows through, causing the crew to rush to safety.
Robin and Dustin are trying to convince Erica to help them access a secured area. She's small enough to fit into a vent that they cannot fit into. Erica then explains why she loves the United States and capitalism: people get compensated for their services depending on how valuable they are. She states that she wants free ice cream for life as compensation for her services.