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Do light bulbs emit light or suck in dark?
bulbs emit light
Do light bulbs emit light or suck dark?
Light bulbs emit light.
Dark matter cannot be directly observed because?
Dark matter is known to exist, due to its gravitational effects. It has not been observed directly.It is believed to be some as-yet unknown particle, which doesn't interact at all, or only very little, with normal matter, or with light, via any force other than gravitation. Thus, for example, it won't absorb or emit light - light will pass right through it.
Who came up with the dark matter?
I am researching that question too, All I know is: · dark matter is hypothetical matter that is undetectable by its emitted radiation · presence can be found from gravitational effects on visible matter · Dark matter is believed to play a central role in structure formation1 and galaxy evolution1 · most of the matter in the entire Universe is invisible · invisible stuff is called dark matter · called "dark" because it does not emit any light · cannot be seen directly Have fun!
What is behind dark matter?
This is still a work in progress. Scientists are trying to answer this question. All we know is that it provides gravitational attraction, yet it can't be seen through any means. The presence of dark matter is inferred from the movements of matters that we can see, such as stars, galaxies, etc. But dark matter does not emit or reflect any light. This is the puzzle.
Can stars be dark?
the space has no boundaries so trillions of stars are in the space it gets not enough light that is why the space is dark
How do scientists know black holes exist if these objects don't emit visible light?
They don't directly emit light, but anything falling into them will emit strong electromagnetic radiation - due to the acceleration of the matter falling into the black hole. Also, the black hole attracts all matter near it.
What happens to light that is trapped by matter?
light can be trapped if there is no space to that light can emit or it will bounce to other direction
Why do scientist believe that dark matter does not interact through the electromagnetic force?
Here is the simple simple answer. If dark matter did interact via the electromagnetic force, it would EMIT some light since light is the tell-tale evidence of electromagnetic interaction. This is known to not be the case. Also, and perhaps more importantly, if dark matter did interact electromagnetically it would ABSORB light from distant stars. This is known to not be the case since we don't see unexpected absorption lines in the spectra from stars in our galaxy or other galaxies.
Why do black lights glow in the dark?
when the paint is stuck to a wall with a window next to it, it absorbs light then uses it when its dark
Does technetium emit light?
Technetium doesn't emit light.
Do galaxies emit light?
Yes galaxies emit light
