Can Orion be seen in both hemispheres? One of the most recognizable constellations in the winter and spring sky is Orion, the great hunter. He is visible in both the Northern and Southern Hemispheres, although he seems to be standing on his head if you are looking at him from “down under.” What was the […]
How did Piaget and Vygotsky view the path of cognitive development?
How did Piaget and Vygotsky view the path of cognitive development? Vygotsky believed that the child is a social being, and cognitive development is led by social interactions. Piaget, on the other hand, felt that the child was more independent and that development was guided by self-centered, focused activities. What is the correct order of […]
How accurate are IR thermometers?
How accurate are IR thermometers? To make things worse, infrared thermometers have an accuracy of ±3 degrees. That means your recorded temperature could potentially indicate hypothermia or fever, even if your body temperature is actually normal. Why does my infrared thermometer read low temperature? The “Lo” could be caused by measuring room or “air” temperature […]
Can a charged body attract neutral body?
Can a charged body attract neutral body? The answer is YES. Charged particles indeed attract uncharged ones. The negatively charged body can be thought to be an electron rich specie. When brought near the uncharged body, it repels the free electrons from the uncharged body towards its farther end. What happens to weight of the […]
What are the three most important plant nutrients?
What are the three most important plant nutrients? Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur. What is the difference between mobile […]
Why we move from top to bottom in a group?
Why we move from top to bottom in a group? Answer. Explanation: when we move from top to bottom in a modern periodic table the atomic size increases because the number of electron and proton and neutron increased. Does atomic radius increase from top to bottom? The atomic radius of atoms generally increases from top […]
Is mayonnaise a mixture?
Is mayonnaise a mixture? Mayonnaise is an emulsion, which is a mixture of two liquids that normally can’t be combined. Combining oil and water is the classic example. Chemically, emulsions are colloids, heterogeneous mixtures composed of tiny particles suspended in another immiscible (unmixable) material. Is smoke a homogeneous mixture? Smoke is a heterogeneous mixture as […]
Which is more permeable silt or sand?
Which is more permeable silt or sand? For example, a sandy soil will have larger porosity than silty sand, because the silt will fill in the gaps between the sand particles. But it would a lower permeability because the water would have a “harder” time getting through because there would be less space for it […]
Is light or dark wood floors better?
Is light or dark wood floors better? There will be a higher chance of scratches and scrapes, which light hardwood can hide better than dark hardwood. While you’re free to mix and match styles, many homeowners find that darker hardwood flooring lends itself to a more rustic design, while lighter wood is used to create […]
Do memories last forever?
Do memories last forever? Can we purposely make memories last forever? Unfortunately, most things cannot last forever. Everything is subject to change and decay over time. Memories are destined to fade, and the brains we use to recall them will eventually shut down completely. Are memories lost forever? Most neuroscientists believe that memories are stored […]