How do pipettes work? In the air cushion principle, an air cushion separates the liquid in the tip from the pis- ton inside the pipette. The piston moves the air cushion and the liquid is thus taken up into the pipette tip or dispensed out of it. The air cushion thus works like an elas- […]
What is space noise?
What is space noise? Cosmic noise, also known as galactic radio noise, is not actually sound, but a physical phenomenon derived from outside of the Earth’s atmosphere. Cosmic microwave background radiation (CMBR) from outer space is also a form of cosmic noise. How can we still see the CMB? You can’t see the CMB with […]
When a mass M is attached to a vertical spring and slowly released?
When a mass M is attached to a vertical spring and slowly released? An object of a mass M is attached to a vertical spring which slowly lowers to equilibrium position. This extends the spring x. If the same objects is attached to the same vertical spring but permitted to fall suddenly instead, then the […]
What is the starting point in supply strategy?
What is the starting point in supply strategy? Supply Markets are the starting point for Supply Chains. How does Walmart use CPFR? Collaborative Planning, Forecasting, and Replenishment (CPFR) Of course, now Walmart uses Retail Link and Supplier Scorecards to collaborate with all Walmart suppliers on planning, forecasting, and replenishment. The result is a partnership relationship […]
What do you notice about the colors of the high pressure and low pressure symbols?
What do you notice about the colors of the high pressure and low pressure symbols? The colors of high and low pressure areas are chosen to represent what occurs aloft, not at the surface. Lows are composed of warm rising air; highs of cold sinking air. That’s why highs are represented by blue, which equates […]
What causes a Type 1 supernova to detonate?
What causes a Type 1 supernova to detonate? What causes a Type I supernova to detonate? In a core-collapse supernova, the outer part of the core rebounds from the inner, high-density core, destroying the entire outer part of the star. What is left behind after a Type 1 supernova? Supernova remnant, nebula left behind after […]
How does the Clean Air Act affect us today?
How does the Clean Air Act affect us today? Today, as in the past, the Clean Air Act continues to cut pollution and protect the health of American families and workers. Fewer premature deaths and illnesses means Americans experience longer lives, better quality of life, lower medical expenses, fewer school absences, and better worker productivity. […]
What is covalent bond write its properties?
What is covalent bond write its properties? Covalent compounds have bonds where electrons are shared between atoms. Due to the sharing of electrons, they exhibit characteristic physical properties that include lower melting points and electrical conductivity compared to ionic compounds. Is h20 a double covalent bond? i.e. $$H$$ bonding with other molecules of water but […]
What type of air mass is the Northern Pacific high?
What type of air mass is the Northern Pacific high? Maritime polar air masses, abbreviated mP on weather maps, tend to dominate the Pacific coast region. These air masses form over a cold ocean current in the northern Pacific Ocean. What is cP and mT? maritime-Tropical (mT): As its name suggests, a maritime-Tropical air mass […]
What is the best Candida treatment?
What is the best Candida treatment? Treatment for Invasive Candidiasis For most adults, the initial recommended antifungal treatment is an echinocandin (caspofungin, micafungin, or anidulafungin) given through the vein (intravenous or IV). Fluconazole, amphotericin B, and other antifungal medications may also be appropriate in certain situations. Does apple cider vinegar help with Candida? Apple cider […]