Category: Interesting

Why do I eat with my left hand and write with my right? (Also known as cross-dominance, or mixed-dominance) This is still a really awesome thing to have, but it’s not true ambidexterity. To be ambidextrous means that you have near equal proficiency between your hands with ALL tasks. This isn’t a bad thing, far…

Can both speed and velocity be negative? Difference between Speed and Velocity Speed of an object can never be negative. It can be negative. Distance covered in unit time. Displacement covered in unit time. Can an object’s velocity be negative? An object which moves in the negative direction has a negative velocity. If the object…

Can you evict a tenant for not paying rent in Ontario? If a tenant does not pay the full rent on the day it’s due, you can use the form Notice to End a Tenancy Early for Non-payment of Rent (N4) to tell the tenant that if they don’t either pay the rent or move…

Can a lefty become a righty? Many natural-born lefties were forced into becoming righties throughout the course of history—and in some countries, they still are. There have always been people who have been afraid of those who are different. Historically, this has also been true of right-handed people in relation to lefties. Can you change…

Can I learn drums on electronic drum kit? There’s plenty of online video lessons about learning drums, there’s even software available to help you learn. To begin with though, you need to start with the basics, also called rudiments. Once you’ve grasped several basic rudiments, you’ll be nailing ‘We Will Rock You’ in perfect time…

Are major and minor pentatonic scales the same shape? C Major Pentatonic and A Minor Pentatonic are relative scales – the same thing played in a different context. In practical terms, that means the two scales are interchangeable, so with a bit of music theory knowledge, you can make a Major Pentatonic shape sound like…

How old do you have to be to become an assassin? But to train as an assassin, you need to be at least 16 to do the training. But you would likely do assassin training somewhere in the military. What it takes to be an assassin? To become an assassin, you must be a hunter….

What is the most uncommon hair color? Natural red hair is the rarest hair color in the world, only occurring in 1 to 2\% of the global population. Since red hair is a recessive genetic trait, it is necessary for both parents to carry the gene, whether or not they themselves are redheaded. What is…

Is 108 blood sugar high after eating? Here are the normal blood sugar ranges for a person without diabetes according to the American Diabetes Association: Fasting blood sugar (in the morning, before eating): under 100 mg/dL. 1 hour after a meal: 90 to 130 mg/dL. 2 hours after a meal: 90 to 110 mg/dL. Is…

Why is Hamiltonian invariant under rotation? The existence of a conserved vector L associated with such a system is itself a consequence of the fact that the associated Hamiltonian (or Lagrangian) is invariant under rotations, i.e., if the coordinates and momenta of the entire system are rotated “rigidly” about some point, the energy of the…