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At any time of any clear night, the North Star is visible from anywhere in Minnesota. In fact, it's visible at any time of any clear night from anywhere in the USA, as long as there isn't a building in the way.
lens
NO!!! When neutralising an acid to an alkali , both of which are clear liquids, you do not see always see the product; it may appear to be another clear liquid. e.g. Hydrochloric Acid and Sodium Hydroxide, which are clear liquids produce water a clear liquid and sodium and chloride ions which are not visible. HCl(aq) + NaOH(aq) = H2O(l) + Na^+(aq) + Cl^-(aq) What you can see, if an indicator is used, is the change of colour of the indicator. However, a rusting nail (iron) is visible, but it takes days for the appearance to change, from shiny metal to red/brown of rust.
tyndall effect
vertigial structures
The Great Wall of China is often incorrectly cited as the only man-made structure visible from space. In reality, there are many other man-made structures visible from space, such as large cities, highways, and airports.
clear, visible, obvious
Not to visible light.
Vehicle will be clear of the wingtips and must be visible to personnel in the cockpit
Quite simply, a visible image is an image that is clear and perfectly able to be seen through the naked eye.
Clear sky, full moon
When the ghost became visible, everyone ran from the room. There was no visible difference between the two samples of metal. As we neared the coastline, familiar landmarks became visible.
As compared to what? In what situation? - It isn't very clear what you are comparing.
From any place on earth, at least part of Orion is visible at some time on every clear night of the year.
At any time of any clear night, the North Star is visible from anywhere in Minnesota. In fact, it's visible at any time of any clear night from anywhere in the USA, as long as there isn't a building in the way.
On a right location in a clear sky and the right time, yes.
Clear, no color visible below a pH of approximately 8.0