How do astronomers detect dark matter? Galaxy clusters are particularly important for dark matter studies since their masses can be estimated in three independent ways: From the scatter in radial velocities of the galaxies within clusters. From X-rays emitted by hot gas in the clusters. Is dark matter invisible? Scientists have not yet observed dark […]
Do volcanoes cause lightning?
Do volcanoes cause lightning? Volcanic lightning arises from colliding, fragmenting particles of volcanic ash (and sometimes ice), which generate static electricity within the volcanic plume, leading to the name dirty thunderstorm. Moist convection and ice formation also drive the eruption plume dynamics and can trigger volcanic lightning. What does volcanic earthquake mean? A volcano tectonic […]
Is it safe to link bank account to venmo?
Is it safe to link bank account to venmo? Venmo’s link to your bank and/or credit card account is what enables payments to be sent from person to person. Through their API and concealing of private data, Venmo is able to provide a seemingly safe and secure platform for users to send and receive cash. […]
Can old bananas make you sick?
Can old bananas make you sick? Most of us tend to throw away overripe bananas, fearing they would no longer be fresh, and therefore, not fit to eat. Although overripe bananas may not really look very appetising–the fruit turns soggy while the banana peel may turn black or brown–they are very good for our health. […]
What kind of variable is behavior?
What kind of variable is behavior? An ordinal variable is a categorical variable for which the possible categories can be placed in a specific order or in some ‘natural’ way. In Table 2, the variable ‘behaviour’ is ordinal because the category ‘Excellent’ is better than the category ‘Very good’, etc. Which of the following is […]
How does a fan convert energy?
How does a fan convert energy? (The fan’s blades move air around the room. The kinetic energy of the moving blades does work in moving air through the fan blades.) The fan converts electric energy into kinetic energy that does work, and it converts some electric energy into heat.) What does a fan do to […]
What is r in ideal gas law?
What disqualifies you for a liver transplant?
What disqualifies you for a liver transplant? Aged 65 years or older with other serious illness. With severe organ disease due to diabetes. With severe obesity. With severe and active liver disease such as hepatitis B. Is there age limit for liver transplant? Excellent results can be achieved with elderly donors and there is virtually […]
What are the stages of reflection?
What are the stages of reflection? Stages. The traditional stages of reflection are self-awareness, description, critical analysis, synthesis, and evaluation. This is the cognitive model of learning by reflection. What are the reflective models? One of the most famous cyclical models of reflection leading you through six stages exploring an experience: description, feelings, evaluation, analysis, […]
Is pessimistic a bad word?
Is pessimistic a bad word? So pessimistic people are usually pretty negative. And kind of a bummer to be around. Think of Eeyore, Winnie the Pooh’s perpetually gloomy friend. The word comes to us, not surprisingly, from the Latin pessimus — meaning “worst.” How can you tell if someone’s a pessimist? 15 Subtle But Surefire […]