What did Penzias and Wilson discovery prove? Penzias and Wilson had spotted the CMB, the predicted thermal echo of the universe’s explosive birth. The landmark find put the Big Bang theory on solid ground, suggesting that the cosmos did indeed grow from a tiny seed — a single point — about 13.8 billion years ago. […]
What are the signs your transmission is going out?
What are the signs your transmission is going out? Transmission Trouble: 10 Warning Signs You Need Repair Refusal to Switch Gears. If your vehicle refuses or struggles to change gears, you’re more than likely facing a problem with your transmission system. Burning Smell. Neutral Noises. Slipping Gears. Dragging Clutch. Leaking Fluid. Check Engine Light. Grinding […]
Which circuit is better series or parallel?
Which circuit is better series or parallel? Two bulbs in a simple parallel circuit each enjoy the full voltage of the battery. This is why the bulbs in the parallel circuit will be brighter than those in the series circuit. Another advantage to the parallel circuit is that if one loop is disconnected, then the […]
What are the noise control methods?
What are the noise control methods? Extraction, ventilation, cooling, openings in walls and enclosures. Instead of fitting silencers, it is often possible to achieve a 10 – 20 dB reduction in airborne noise from a duct or opening by lining the last bend in the ductwork with acoustic absorbent (foam or rockwool / fibreglass). Which […]
Why would air pressure be greater at sea level than it would be on the top of a mountain?
What are three things that affect longshore currents?
What are three things that affect longshore currents? When a wave breaks at a more acute (steep) angle on a beach, encounters a steeper beach slope, or is very high, longshore currents increase in velocity. Conversely, a wider breaking angle, gentler beach slope, and lower wave height slows a longshore current’s velocity. What causes long […]
What are the top 5 exercises?
What are the top 5 exercises? 7 Most Effective Exercises Walking. Any exercise program should include cardiovascular exercise, which strengthens the heart and burns calories. Interval training. Squats. Lunges. Push-ups. Abdominal Crunches. Bent-over Row. How can I get my flexibility back? Bend your knees and keep a straight back when picking up your weight. Place […]
Which of these star clusters is oldest?
Which of these star clusters is oldest? A team of astronomers using the Gemini-South telescope has discovered one of the oldest stellar clusters in the Milky Way. The team’s results date the globular cluster, named HP 1, at about 12.8 billion years, making its stars among the oldest ever found in our Galaxy. Which group […]
What type of system is best to observe conservation of mass?
What type of system is best to observe conservation of mass? Answer. The law of conservation of mass can be best observed in any type of chemical reaction that is a closed system. What is the difference between an open and a closed system? There are three types of systems in thermodynamics: open, closed, and […]
What is Brownian motion explain with diagram?
What is Brownian motion explain with diagram? The zigzag movement of the small particles suspended in a liquid or gas is called brownian motion. The best evidence for the existence and movement of particles in liquid was given by ROBERT BROWN. On looking through the microscope, it was found that the pollen grains were moving […]