Monthly Archives: April 2017

Rollercoaster Diagram for Conservation of Energy Example Problem — Potential energy is energy attributed to an object by virtue of its position. When the position is changed, the total energy remains unchanged but some potential energy gets converted into kinetic energy. The frictionless roller coaster is a classic potential and kinetic energy example problem. The roller coaster problem shows […]

Potential And Kinetic Energy Example Problem – Work and Energy ...

This entry was posted on April 30, 2017 by Todd Helmenstine (updated on September 7, 2022)

Stamped Periodic Table in Steel — Metal Periodic Table of Steel! This metal periodic table wallpaper has the elements stamped into a shiny, flat sheet of steel. Each element is represented by its atomic number, symbol, name, and atomic mass. The table itself includes the four new elements completing the period 7 elements: nihonium, moscovium, tennessine, […]

Stamped Metal Periodic Table Wallpaper

This entry was posted on April 20, 2017 by Todd Helmenstine (updated on May 17, 2021)

Inelastic Collision Example Problem Illustration After condition — A collision is considered an inelastic collision when kinetic energy is lost during the collision. This inelastic collision example problem will show how to find the final velocity of a system and the amount of energy lost from the collision. Inelastic Collision Example Problem Question: A 3000 kg truck travelling […]

Inelastic Collision Example Problem – Physics Homework Help

This entry was posted on April 20, 2017 by Todd Helmenstine (updated on May 17, 2021)

The black snakes will burn on their own if you get them hot enough. — Black snake fireworks are also known as Pharaoh’s snakes, Pharaoh’s serpent, or glow worms. Although called “fireworks” they are a type of small pyrotechnic that doesn’t explode or even give off sparks. When you light a black snake, it pushes out a column of ash that sort of resembles a […]

Make Black Snake Fireworks Using Calcium Supplements

This entry was posted on April 12, 2017 by Anne Helmenstine (updated on June 29, 2021)

Color Neon Lights Periodic Table Wallpaper — This colorful neon lights periodic table wallpaper shines brightly with a subtle glow. This table contains each element’s number, symbol, and name. Each element group shines with a different colored neon tube glow. As you move across the body of the tables, the colors follow the classic ROY G BIV […]

Color Neon Lights Periodic Table Wallpaper

This entry was posted on April 7, 2017 by Todd Helmenstine (updated on May 17, 2021)

This spacewalk would have been a lot more interesting without the space suit and not necessarily fatal. (NASA) — Learn what really happens if you're exposed to space and how an astronaut could survive being without a space suit (at least for a little while).

What Really Happens If You’re Exposed to Space

This entry was posted on April 6, 2017 by Anne Helmenstine (updated on September 18, 2022)

Tritium Neon Glowing Tube Periodic Table Wallpaper — These colored glowing tube periodic table wallpapers are a colorful means to adorn your desktop with the elements. The individual element cells are meant to look like neon glow tubes in a sort of 80s ‘future’ font. Each wallpaper is suitable for 4K monitors with a resolution of 3840 x […]

Neon Colored Glowing Tube Periodic Table Wallpapers

This entry was posted on April 5, 2017 by Todd Helmenstine (updated on May 17, 2021)

Elastic Collision Example Problem Illustration — Elastic collisions are collisions between objects where both momentum and kinetic energy are conserved. This elastic collision example problem will show how to find the final velocities of two bodies after an elastic collision. This illustration shows a generic elastic collision between two masses A and B. The variables involved […]

Elastic Collision Example Problem – Physics Example Problems

This entry was posted on April 1, 2017 by Todd Helmenstine (updated on May 2, 2021)