The Electrolysis of Water

Figure 1. The electrolysis of water produces stoichiometric amounts of oxygen gas at the anode and hydrogen at the anode. Source: OpenStax Chemistry 2e The Electrolysis of Water (OpenStax Chemistry 2e) Water may be electrolytically decomposed in a cell similar to the one illustrated in Figure 1. To improve electrical conductivity without introducing a different redox species, the … Continue reading The Electrolysis of Water

What is Carbon?

Figure 1. (a) Diamond and (b) graphite are two forms of carbon. (c) In the crystal structure of diamond, the covalent bonds form three-dimensional tetrahedrons. (d) In the crystal structure of graphite, each planar layer is composed of six-membered rings. (credit a: modification of work by “Fancy Diamonds”/Flickr; credit b: modification of work from http://images-of-elements.com/carbon.php) What is … Continue reading What is Carbon?

Pain Perception

Source: By Injurymap - editInjuryMap - Free Human Anatomy Images and Pictures. Retrieved on 2019-08-10., CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=78335761 Pain Perception (OpenStax Psychology 2e) Pain is an unpleasant experience that involves both physical and psychological components. Feeling pain is quite adaptive because it makes us aware of an injury, and it motivates us to remove … Continue reading Pain Perception

High Intelligence: Nature or Nurture?

Figure 1. The correlations of IQs of unrelated versus related persons reared apart or together suggest a genetic component to intelligence. Source: OpenStax Psychology 2e High Intelligence: Nature or Nurture? (OpenStax Psychology 2e) Where does high intelligence come from? Some researchers believe that intelligence is a trait inherited from a person’s parents. Scientists who research this topic typically use … Continue reading High Intelligence: Nature or Nurture?