Does the Beagle ship still exist? It said no evidence of the Beagle itself has yet been found. Following the Beagle’s third and final exploratory voyage in 1843 it was refitted as a static watch vessel for the coastguard in 1845, until sold in 1870. Why was Darwin’s ship named Beagle? In 1837 HMS Beagle […]
What is the ideal temperature for water?
What is the ideal temperature for water? If we’re just going about our day to day routines, cold water is best. Water between 50 and 72 degrees allows our bodies to rehydrate faster because it is absorbed more quickly. Many people think that drinking cold water will help them lose weight faster because the body […]
What are the colors that have high energy?
What are the colors that have high energy? The visible light portion of the electromagnetic spectrum shows the rainbow of colors, with violet and blue having shorter wavelengths, and therefore higher energy. At the other end of the spectrum toward red, the wavelengths are longer and have lower energy (Figure 3). Is red a higher […]
Does bleach remove food coloring from water?
Does bleach remove food coloring from water? A small amount of bleach delivered with an eye dropper will change the color of colored water, making the color seem to disappear before your students’ eyes. Fill one beaker with water and another with a little bit of liquid bleach. Don’t fill the bleach beaker too much, […]
What are two ways that a liquid can be turned into a gas?
What are two ways that a liquid can be turned into a gas? Vaporization of a sample of liquid is a phase transition from the liquid phase to the gas phase. There are two types of vaporization: evaporation and boiling. Evaporation occurs at temperatures below the boiling point, and occurs on the liquid’s surface. What […]
How much force does it take to stop a moving train?
How much force does it take to stop a moving train? A light rail train requires about 600 feet to stop—the length of two football fields. Compared to this, the average freight train we mentioned above traveling at 55 miles an hour may take the length of about 18 football fields to stop. Can Spider […]
What is real matrix?
What is real matrix? A real matrix is a matrix whose elements consist entirely of real numbers. The set of real matrices is sometimes denoted. (Zwillinger 1995, p. 116). SEE ALSO: Complex Matrix, Integer Matrix, Matrix, Random Matrix, Real Number, Square Matrix. What is meant by Hermitian matrix? : a square matrix having the property […]
Can Bone Bend?
Can Bone Bend? Long bones may bend without breaking the cortex. Children’s bones can be bent to 45 degrees before the cortex is disrupted and a greenstick or a complete fracture occurs. However if the bending force is released the bone may only partially return to its pre-bent position, resulting in plastic bowing. Does vinegar […]
What do we use carbon 13 for?
What do we use carbon 13 for? Such compounds are safe because they are non-radioactive. In addition, 13C is used to quantify proteins (quantitative proteomics). One important application is in “Stable isotope labeling with amino acids in cell culture” (SILAC). C-enriched compounds are used in medical diagnostic tests such as the urea breath test. Why […]
What happens when a wave reflects off a fixed boundary?
What happens when a wave reflects off a fixed boundary? The right end is held tightly; it is a fixed end. The wave reflects off this fixed end and returns as a downward displaced pulse. Reflection off a fixed end results in inversion. At what angle does a reflected waves bounce back? In a reflection, […]