Speed of Sound, Stars and more

Children & Family

Aug 25, 2013

SPEED OF SOUND - Mr. Wizard measures the difference between hearing the sound of a starter pistol over the walkie talkie and hearing it through the air.

Full Episodes

Season 2, 15 episodes

Atari Computer, How you See and more,

CEILING SPRINKLER - Mr.Wizard shows Tanis a ceiling sprinkler set up on a stand. He points out the plug made of a special combination of metals that melt at a specific temperature. This one melts at 160º C.

25m Aug 25, 2013

Firefly Trickery, Steel Wool Fireworks and more,

STEEL WOOL FIREWORKS - Leila is surprised to see steel wool burning. Mr. Wizard has arranged things to show her that oxidation, the combining of a material with oxygen, can take place even with things that normally you think won't burn.

25m Aug 25, 2013

Meteor Portrait, Moldy Orange and more,

LIGHT ON A STRING - Tanis is amazed to see the image of an elephant on a vibrating piece of string. Mr.Wizard explains that light is invisible. We see it only when it is reflected from an object.

25m Aug 25, 2013

Steam Engine, Earth & Sun and more,

FIBER OPTICS - A pin is attached to the end of a pencil which is held underwater in a glass. Michael looks up at the undersurface of the water to see a mirror image. The surface underneath the top of the water acts like a mirror.

24m Aug 25, 2013

Speed of Sound, Stars and more,

SPEED OF SOUND - Mr. Wizard measures the difference between hearing the sound of a starter pistol over the walkie talkie and hearing it through the air.

25m Aug 25, 2013

Unusual water, Electron Microscope and more,

LIGHT BULBS vs IRON: Mr.Wizard and Stacey stand behind a row of 100-watt light bulbs numbered 1 to 14. They are going to find out how much electricity is used around the house when various appliances are plugged in.

24m Aug 25, 2013

Model Rocket, Giant Model Train and more,

MODEL ROCKET - Jason, who has launched many rockets with his father, shows Mr.Wizard the various parts of the rocket and how to launch one safely. GLASS BENDING - Mr.Wizard and Tanis discuss the unusual properties of glass.

25m Aug 25, 2013

Electrocuted Hot Dog, Chocolate Journey and more,

ELECTROCUTED HOT DOG - Leila describes the various ways to cook a hot dog: boiling. fry, and baking in an oven. Mr. Wizard says they are going to electrocute one.

25m Aug 25, 2013

Underwater Safari, Jet Propelled boat and more,

POLARIZING LIGHT STRIPS - Mr. Wizard shows Leila how polarizing filters work with the passage of light.

25m Aug 25, 2013

Random Computer Numbers, Rainbows and more,

MAKE A RAINBOW - Heather comes upon Mr. Wizard sprinkling the lawn. He asks her to describe a rainbow. He notes that a rainbow is formed when there are tiny drops of moisture in the air, and you look at them with the sun behind you.

24m Aug 25, 2013

Bone Strength, How many Oceans and more,

HYDROGEN, AIR & HELIUM - Jason stands behind three balloons, two floating upward and one hanging downward from a bar. One balloon is filled with helium, the next, hydrogen and the third, a combination of air and carbon dioxide.

25m Aug 25, 2013

Firefighter's School, Robot Sensor and more,

LIQUID NITROGEN - Christian dips a carnation into a bowl of liquid nitrogen, pulls it out, and hits it against the table. The flower shatters into many tiny pieces as if it were made of glass.

25m Aug 25, 2013

Static Electricity, Hypo Crystals and more,

STATIC ELECTRICITY - Mr. Wizard shows Nicola some fun tricks with the Van de Graaff generator. LIFTING CUPS - Mr.Wizard challenges Leila to pick up two plastic drinking glasses with a balloon. She thinks it's impossible.

25m Aug 25, 2013

Pond Safari, Deadliest Mushroom and more,

ROLLER COASTER POPCORN - At an amusement park, Mr. Wizard has made arrangements for Christian to ride on a roller coaster that loops upside down. Mr. Wizard has given Christian a container of popcorn.

25m Aug 25, 2013

Lions, Orion and more,

HERO’S ENGINES - Mr. Wizard describes the Greek philosopher, Hero, who invented an engine. A model of it is a flask with two glass tubes coming from opposite sides. It's hanging by a string from a lab stand.

25m Aug 25, 2013