Which type of lever is scissors? Other examples of first class levers are pliers, scissors, a crow bar, a claw hammer, a see-saw and a weighing balance. In summary, in a first class lever the effort (force) moves over a large distance to move the load a smaller distance, and the fulcrum is between the […]
Is the aurora borealis dangerous?
Is the aurora borealis dangerous? The Northern Lights occur so high up in the atmosphere that they don’t pose any threat to people watching them from the ground. The aurora itself is not harmful to humans but the electrically charged particles produced could have some potentially negative effects to infrastructure and technology. Is 2020 a […]
What are three tips you should keep in mind before beginning work inside a computer case?
What are three tips you should keep in mind before beginning work inside a computer case? What are three tips you should keep in mind before beginning work inside a computer case? -Make notes as you work so that you can backtrack later if necessary. -Remove loose jewelry that might get caught in cables and […]
What are three signs of substance use?
What are three signs of substance use? Criteria for Substance Use Disorders Taking the substance in larger amounts or for longer than you’re meant to. Wanting to cut down or stop using the substance but not managing to. Spending a lot of time getting, using, or recovering from use of the substance. Cravings and urges […]
Which achievement is credited to Aristotle?
Which achievement is credited to Aristotle? Aristotle was one of the greatest philosophers who ever lived and the first genuine scientist in history. He made pioneering contributions to all fields of philosophy and science, he invented the field of formal logic, and he identified the various scientific disciplines and explored their relationships to each other. […]
What is the minimum size power conductors that are permitted to be run in parallel?
What is the minimum size power conductors that are permitted to be run in parallel? Parallel conductor installations are covered in NEC 310.10(H) and are permitted for each phase, polarity, neutral, or grounded conductor in sizes 1/0 AWG and larger. Joining conductors in parallel is like having two or more smaller conductors connected at each […]
How much heat can a resistor take?
What is SFX and VFX?
What is SFX and VFX? Special Effects (often abbreviated to SFX) refers to on-set visual effects techniques; you could also call them ‘practical effects’. VFX is an abbreviation of Video Effects. Video Effects enabled filmmakers to achieve the same effects as on-set SFX during post-production. What movie has the best special effects? Special effects in […]
Can scanning electron microscopes see DNA?
Can scanning electron microscopes see DNA? Now an electron microscope has captured the famous Watson-Crick double helix in all its glory, by imaging threads of DNA resting on a silicon bed of nails. The technique will let researchers see how proteins, RNA and other biomolecules interact with DNA. Can cilia be seen with a light […]