What does the position of each peak (where along the horizontal axis the peak is positioned) in a photoelectron spectrum tell you? Like proteins, DNA has levels of structural complexity. How many levels does it have? How many NADH and FADH2 are formed from each original pyruvate molecule in...
How many atoms are present in 1 gram of carbon-12? How did the scientific revolution start? Are there any elements in neutron stars, and if so what are they? When an electron is transferred from one element to another, how does the element getting an extra electron still ...
In an atomic clock, the natural oscillations of atoms act like the pendulum in a grandfather clock. However, atomic clocks are far more precise than conventional clocks because atomic oscillations have a much higher frequency and are much more stable. There are many different types of atomic cloc...
This problem shows how the lack of just one enzyme in the human body can lead to problems. A person who is lactose intolerant can swallow a drop of lactase prior to drinking milk and the problem is solved. Many enzyme deficiencies are not nearly so easy to fix. Inside a bacterium there...
How many antennae does ALMA have? The final antenna being delivered to ALMA in 2014. (Image credit: A. Marinkovic/X-Cam/ALMA (ESO/NAOJ/NRAO)) ALMA includes 66 antennae split into groups. The 12-Meter Array consists of 50 39-foot (12 meters) radio dishes that are used for high-resolut...
Many parents and educators feel that these categories more accurately express the strengths of different children. But critics allege that Gardner's definitions are so broad and inclusive that they make intelligence meaningless. Are we getting smarter? For several years, scientists have noticed a gene...
Making a Hologram A basic hologram is easier to setup than you might think. HowStuffWorks It doesn't take very many tools to make a hologram. You can make one with: A laser: Red lasers, usually helium-neon (HeNe) lasers, are common in holography. Some home holography experiments rely...
The nurse selects the nursing diagnosis of Risk for Impaired Skin Integrity related to immobility, dry skin, and surgical incision. Which of the following represents a properly stated outcome/goal? Th...
While there are strong covalent bonds between carbon atoms in each layer, there are only weak forces between layers. This allows layers of carbon to slide over each other in graphite. ... In this rigid network atoms cannot move. This explains why diamonds are so hard and have such ahigh ...
A light microscope, whether a simple student microscope or a complex research microscope, has the following basic systems: Specimen control - hold and manipulate the specimen stage - where the specimen rests clips - used to hold the specimen still on the stage (Because you are looking at a ...