Category: Physics

Which stars are the youngest? If proven, the newly discovered neutron star will be the youngest one known by humanity, beating the current youngest supernova remnant is Cassiopeia A, which is 330 years old that can be found 11,000 light-years away from Earth and can be found within our galaxy. Why doesn’t the helium core […]

What is the blue wire in a light fixture? The blue wire is the hot wire for the ceiling fan light fixture. The ceiling fan motor does not have a ground wire. What is the blue wire in headphones? Usually red wires are the right audio channel and blue wires are the left audio channel. […]

Was the Ark bigger than the Titanic? As you will soon see, conditions were not ideal. We know that the ark was bigger than a rowboat, but smaller than the Titanic. In fact, we know its exact size – it was 450 x 45 x 75 feet, with an approximate volume of 1,518,750 cubic feet. […]

How accurate are dial calipers? Quality dial, Vernier or digital calipers can all return an accuracy of about 0.001 inch over 6 inches if correctly used, although the accuracy is likely to diminish over longer spans. What are the 3 ways a dial caliper can be used to measure? There are 4 measurements you can […]

Which type of stars are the youngest? Yellow dwarfs are small, main sequence stars. The Sun is a yellow dwarf. A red dwarf is a small, cool, very faint, main sequence star whose surface temperature is under about 4,000 K. Red dwarfs are the most common type of star…. TYPE Star IV Subgiants V Main […]

What are the 3 real primary colors? Color Basics Three Primary Colors (Ps): Red, Yellow, Blue. Three Secondary Colors (S’): Orange, Green, Violet. Six Tertiary Colors (Ts): Red-Orange, Yellow-Orange, Yellow-Green, Blue-Green, Blue-Violet, Red-Violet, which are formed by mixing a primary with a secondary. Does Google have a new logo? Google is replacing its iconic Gmail […]

How big asteroid that killed the dinosaurs? It was tens of miles wide and forever changed history when it crashed into Earth about 66 million years ago. The Chicxulub impactor, as it’s known, was a plummeting asteroid or comet that left behind a crater off the coast of Mexico that spans 93 miles and goes […]

Are greenhouse gases good or bad? The greenhouse effect is a good thing. It warms the planet to its comfortable average of 59 degrees Fahrenheit (15 degrees Celsius) and keeps life on earth, well, livable. Without it the world would be a frozen, uninhabitable place, more like Mars. Why is greenhouse gas bad? Greenhouse gases […]

What is a magnetic field how can the direction? the magnetic fields are the imaginary line which moves from south to north. this lines do not overlap each other. we can find the direction of the magnetic field lines by keeping a compass near to it. Why do 2 magnets repel or attract each other? […]

What are the disadvantages of resistance training? ISOMETRIC ISOTONIC Disadvantages: angle specific limited use in sports limited strength and endurance gains cannot monitor intensity large increases in blood pressure higher injury risk (free weights, uncontrolled movement) expensive weight lifted is limited by the ‘sticking point’ more muscle soreness Should I do resistance training everyday? One […]