4. Reflection: When light bounces off a surface and comes back to our eyes, we see a reflection. 反射:当光线从表面反射回来进入我们的眼睛,我们就会看到反射。 5. Friction: It's the force that happens when two surfaces rub against each other, making it harder to move. ...
When this happens, the circuit becomes highly efficient at transmitting energy at that specific frequency, akin to how a tuning fork resonates when struck. This phenomenon is vital in fields like radio technology and the development of electronic devices. Emotional Resonance: When Feelings Vibrate ...
What happens to light when it falls upon a material that has a natural frequency equal to the frequency of the light?Natural FrequencyAll material vibrates or oscillates within the structure which is known as the electron's vibrational motion. Whe...
Soundwaves vibrate the air to send audio in through the outer ear to the ear drum, which vibrates to send sound information to the brain for processing. How we hear sound: What happens when sound waves reach the outer ear? When sound waves reach the outerear, the auricle or pinna collec...
But what is sound?Sound happens when something vibrates (振动) or shakes.We can make something vibrate by hitting it.Try this experiment (实验).Put your ruler on your desk so that part of it sticks out (伸出) over the edge.Put your hand on the part of the ruler that is on the des...
What's the difference between diffraction and scattering of light? What is polarization of electromagnetic waves? What are the particles contained in the sunlight? Does the curve of a lense affect how much light is being refracted? What happens to a light wave when it travels from air into gl...
What Happens When an iPhone Is Dropped in Water? Is My iPhone Waterproof? What’s the Difference Between Waterproof and Water-Resistant? How Do I Tell if My iPhone Is Water-Damaged? How Does Apple Know if I Dropped My iPhone in Water? How Do I Fix a Water-Damaged iPhone? Take it to...
device around the waist or back that forces the person to sleep on their side. Another possibility is to wear a small device on the back of the neck that gently vibrates when a person starts to sleep on their back. This vibration notifies the body to change positions without waking the ...
They must be mad too. They certainly shout and scream like madmen. In fact I’m afraid to go out when there’s a football match. The crowds are so dangerous. I’d rather stay at home and watch TV. But what happens when I switch on? They’re showing a football match. So I turn...
the motion sensor light that was installed facing the side-yard by the previous owners of our house mysteriously turns on at night. The harsh fluorescent light illuminates a wedge-shaped area of the side-yard for several minutes when this happens and I peer out of the windows trying to ident...