Why do we need a ULN2003 in driving a stepper motor? Known for its high current and high voltage capacity, the ULN2003 gives a higher current gain than a single transistor and enables the low voltage and low current output…
Where do photochemical reactions occur in plants? In grana or stroma lamellae have stacks of thylakoid where the photosynthetic pigments are located and this photochemical reaction takes place. What is photochemical in plants? Plant photochemistry is a highly regulated process,…
What is the difference between magnetic and electronic ballast? Magnetic ballasts work at a frequency of around 60 Hz, whereas electronic ballasts work at an increased frequency of around 20,000 Hz. This is why fluorescent lamps using electronic ballasts do…
How do you ask someone to skip a meeting? Can I contribute in advance? “This is going to be an important discussion. I’m not able to attend, but I will find some time to share my thoughts so you can…
How does a baby digestive system develop? At 5 weeks of pregnancy, a layer of cells on the underside of your developing embryo rolls into a long tube that will become the digestive tract. Between 5 and 7 weeks, the…
What is a cause greater than yourself? To serve a cause greater than yourself, one writer explains, is to act “in ways that are beyond personal concerns and direct personal gain.” In the terminology of psychological anthropologist Richard Shweder, it…
What are the 3 main differences between bacteria and archaea? Archaea: They are single-celled organisms that comprise cells with distinct properties that make them unique from the other two domains of life, namely Eukaryota and Bacteria….Bacteria and Archaea – The…
What does dim sum mean in Chinese? touch the heart Dim sum means ‘touch the heart’ in Chinese. The small portions were designed to merely touch the heart not sate the appetite, and as such were first enjoyed as snacks….
How does Poe describe Ligeia? According to the narrator, Ligeia is tall, slender, and, in her later days, emaciated. She treads lightly, moving like a shadow. Though fiercely beautiful, Ligeia does not conform to a traditional mold of beauty: the…
Is there a new version of the flip phone? The 2019 Galaxy Fold and 2020 Z Fold 2 were released in September, while the Z Fold 3 debuted in August 2021. If Samsung plans on releasing the phones as a…