why do moths and some flies fly towards light?
i have my window open and a light on inside. outside it is dark, i was wondering why all the moths and daddy long-legs all fly towards the light. 

thanks x
flying insects use the sun or the brightest light source as a reference for navigation. the sun or moon work nicely since they are a great distance away making the light rays, for all practical purposes (like navigation), parallel to each other. the insect observes the angle of the point of light as it starts its journey and returns simply by flying the reciprocal or opposite angle for the same length of time.

the problem for the insect comes when it uses a nearby source of light such as a light bulb as it navigates. the rays from a bulb are no longer strictly parallel since light is emitted from all points of a relatively large global surface of the bulb. as the insect tries to maintain a constant light-to-eye angle it has to make constant corrections by turning in flight. this results in a spiraling flightpath bringing it closer and closer to the bulb until they are, shall we say "overcome by the heat", or they run into the window glass.
@derek higgs interesting, mine lights up the kitchen like daylight normally! thanks for this, if you go into settings, there’s a setting called backlight which has options on or 1 min; i cahnged mine to 1 min, just nipped downstairs (at 12:02 am) and the kitchen is in darkness! i’m unsure when it went off but if you change the backlight to “on” it will light up all night. peter Regards,



From the information you have conveyed, there are complaints of small flashes or shadows of black threads and sometimes flash is a form of floaters. So that in your eyes you can see a picture of a shadow floating and moving in all directions, which in the end this condition can interfere with your vision. Some of the causes of this complaint can be caused by:



1. inflammation of the front of the eye



2. nearsightedness



3. cataracts



4. Laser action



5. Diabetes



6. inflammation of the retina



7. retinal detachment or disruption or detachment of the retinal lining



8. eye trauma



9. buildup of crystals in eye fluid



Meanwhile, the pressure of your eyeball that reaches a value of 22 mmHg, indicates the eye pressure is above normal, or is called intarocular hypertension. The normal value of eye pressure ranges from 12-21 mmHg. The condition of increased eye pressure can be caused by several conditions, such as:



1. galaucoma, or a disturbance in the circulation of fluid in the eye so that it damages the function of the optic nerve



2. drug side effects



3. diabetes



4. nearsightedness



5. eye injury



Thus, in patients with distant vision problems or patients with nearsightedness it is possible to find an increase in eye pressure and floaters.



Therefore, do regular check-ups with your ophthalmologist according to the scheduled next examination visit. The doctor will conduct periodic checks at least every 6-12 months to find out the health condition of your eyes.



What you can do is avoid eye fatigue, avoid sleeping late at night.



That's the information we can convey, read also eye pressure increases.



dr. Ulfi when a ray of light falls on a smooth and shiny surface, the whole of light is sent back in the same direction. it is called reflection. mirrors do not allow even a small amount of light to pass through them. mirrors show regular and complete reflection.when all the parallel rays reflected from a plane are not parallel, the reflection is diffused or irregular. this is not violation of law of reflection, the reason for diffused reflection is due to irregularities in the reflecting surface. ![](https://s3mn%20mnimgs%20com/img/shared/discuss_editlive/2191102/2012_01_06_16_34_59/high%20bird%20png)
conditions for the formations of shadows are
1 a light source, an opaque obstacle, a screen
2 umbra, that is the dark part (shown in the above figure by the
dark triangular shape) of the shadow must fall on the screen dolphins are friendly to humans because dolphins have a very large brain, which is where their emotional intelligence comes from, and sometimes dolphins see us as part of their pod. dolphins have compassion and empathy for humans like dogs and some other mammals. kindly refer the following link for similar query
https://www meritnation
com/ask-answer/question/why-does-a-ball-rolling-on-the-ground-in-a-straight-come/science/8033135 we are required to state the effect of one of the laws governing brightness. apparent brightness:b=l4πd2 where b is apparent brightness, l is intrinsic luminosity, and d is the distance from the source. [readmore]as the distance increases, the apparent brightness gets fainter as the distance from the source increases. the fainting brightness is accounted for by the spreading out of photons: as light travels away from its source, the photons get spread out over increasingly greater areas. the more the light is spread out, the fainter it appears in any given patch of area (for example, the small patch of the area covered by the opening in your eye)the correct choice is:d. far from the source, photons spread over a larger area. dear student,
we know that,after the discovery of electrons, we got to know that
electrons are the particles that flow in a conductor electrons
being the negatively charged particles flow from the negative
terminal to the positive terminal and for current now, electric or
conventional current is the rate of flow of charge so, the
direction of the current should be same as the direction of the
charge, i e positive charge(conventionally), so the direction is
opposite to the flow of the negative charge(flow of electrons)
hence, the direction of the flow of electrons is opposite to the
direction of electric(or conventional) current
regards A thunderstorm with lots of lighting, wind, and thunder. switch off the extension for dark mode, it is changing things

there is a native dark mode you can switch on in the settings