What is the best shoe stretcher? FootFitter Premium Professional Should your toes touch the end of shoes? We should not be making contact with the end of the toe box; in fact many well-fit walking shoes should have a generous space between the end of the toebox and the tip of the toes. We should […]
Is Earth a perfect sphere?
Is Earth a perfect sphere? Even though our planet is a sphere, it is not a perfect sphere. Because of the force caused when Earth rotates, the North and South Poles are slightly flat. Earth’s rotation, wobbly motion and other forces are making the planet change shape very slowly, but it is still round. Why […]
Can you have an extra chromosome and be normal?
Can you have an extra chromosome and be normal? Most commonly, some cells end up with one extra or missing chromosome (for a total of 45 or 47 chromosomes per cell), while other cells have the usual 46 chromosomes. Mosaic Turner syndrome is one example of chromosomal mosaicism. How do you know if you have […]
What makes a good learning space?
What makes a good learning space? Muted colours, gentle lighting, comfortable seating and, when needed, screens for privacy must all be taken into account as well as making sure they are still flexible enough for the individual needs of every pupil. How does space affect learning? With responses from over 1600 educators, our study reveals […]
How do you make a simple electromagnet?
How do you make a simple electromagnet? Electromagnets can be created by wrapping a wire around an iron nail and running current through the wire. The electric field in the wire coil creates a magnetic field around the nail. In some cases, the nail will remain magnetised even when removed from within the wire coil. […]
Why is ecological footprint bad?
Why is ecological footprint bad? The ecological footprint is a measure of the resources necessary to produce the goods that an individual or population consumes. Finally, the lack of correlation between land degradation and the ecological footprint obscures the effects of a larger sustainability problem. What causes a high ecological footprint? Resource consumption such as […]
What would happen if the Hoover Dam collapsed?
What would happen if the Hoover Dam collapsed? If catastrophe struck the Hoover Dam and it somehow broke, a catastrophic amount of water from Lake Mead would be released. That water would likely cover an area of 10 million acres (4 million hectares) 1 foot (30 centimeters) deep. Approximately 25 million people depend on water […]
What are the physical properties and uses of sulfur?
What are the physical properties and uses of sulfur? Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water. It reacts with all metals except gold and platinum, forming sulfides; it also forms compounds with several nonmetallic elements. What are the 3 […]
Which hemisphere is the warmest?
Which hemisphere is the warmest? Northern Hemisphere Is it weird living in the southern hemisphere? The Southern hemisphere is mostly ocean. There is just less land to live on. In addition, the only continents, or large land masses, Australia and Antarctica, that are situated entirely IN the Southern hemisphere, as opposed to crossing into it […]