

I'd say if the mirror passed the fingernail test, it is most likely a legitimate mirror. Someone would probably notice a difference in the reflectivity of the mirror's surface eventually. I would say it was theoretically possible to create a mirror pane with partial silvering on both the first and second layers, but it would be difficult to disguise this arrangement. You also have to watch for cameras these days to protect our privacy, and they make gadgets for that - to detect cameras. Why is partial silver coating done only on the front surface of two-way mirrors, whereas it is done on back surface of regular mirrors? Can't we falsify the fingertip test by coating the back surface of two-way mirrors partially with silver? The use of a two-way surveillance mirror is legal under many circumstances, but not when there is a reasonable expectation of privacy, such as in hotel rooms, public restrooms, or dressing rooms. Since there is no framing or support behind the mirror's glass, it may sound brighter or sharper when tapped. Some say that this type of mirror makes a different sound when tapped with a finger than a traditional one. If the lighting cannot be changed, a person may be able to look through the mirror by forming a shade with his or her hands and looking through the glass for any signs of light or defined shapes. Turning off all the lights in the room and shining a bright flashlight through the suspected mirror should reveal the presence of a hollow space or second room behind it. If the suspected mirror appears permanently installed on a wall instead of housed in a removable frame, it may be two-way.

NOTES: Your microscope slide should be prepared with a coverslip over the sample to protect the objective lenses if they touch the slide. When finished, lower the stage, click the low power lens into position and remove the slide.Do not let the objective lens touch the slide! If you cannot focus on your specimen, repeat steps 3 through 5 with the higher power objective lens in place. You might need to readjust the sample into focus and/or readjust the condenser and light intensity. When you have a clear image of your sample with the lowest power objective, you can change to the next objective lenses.Use the focus knob (4) to place the sample into focus and readjust the condenser (7) and light intensity for the clearest image (with low power objectives you might need to reduce the light intensity or shut the condenser).Move the microscope slide around until the sample is in the centre of the field of view (what you see).Adjust the condenser (7) and light intensity for the greatest amount of light.Look through the eyepiece (1) and move the focus knob until the image comes into focus.Move it up as far as it will go without letting the objective touch the coverslip. Look at the objective lens (3) and the stage from the side and turn the focus knob (4) so the stage moves upward.Place the microscope slide on the stage (6) and fasten it with the stage clips.Turn the revolving turret (2) so that the lowest power objective lens (eg.
#LOOKTHROUGH MIRROR HOW TO#
How to Use a Microscope Compound Microscopes
