The invention relates to a device for projecting slides using an overhead projector in which there is arranged above the Fresnel lens a transparent writing plate which is surrounded by a mount. The object of the invention is to provide a possibility for correctly projecting slides which cover ...
Electric field using an overhead projector Examines the light scattering of small particles using an overhead projector. Suspensions of polystyrene microspheres; Features of the extinction curve; R... Mennie,Ian,Snook,... - 《Physics Teacher》 被引量: 0发表: 1975年 Clsroom Work Using an Over...
A display adapter (20) adapts a display (84), such as a laptop display, to a projector display panel for use with an overhead projector. The laptop display (84) is detached from a laptop CPU (80) and physically and electronically connected to the adapter (20). The display adapter has...
Write a sentence that includes an error of punctuation or grammar. Have students identify the error, describe the error in the space on the calendar, and correctly rewrite the sentence on the back of the page. Use an overhead projector to display on the wall a paragraph or a brief story ...
To use a specific ConcepTest in class, we displayed it using an overhead projector, or sometimes distributed a copy of the ConcepTest to each student. Students are then given short time (one to four minutes, depending on the question) to think about the ...
By stacking transparencies and stack them on an overhead projector, we can visually decode the secret through human visual system without the assistance of... CN Yang,YY Yang - 《Information Sciences》 被引量: 20发表: 2014年 A Colorful Look at the Chelate Effect By carrying out the reactions...
a.He should have shown the drawing with an overhead projector. b.He should have created a handout and passed it among the audience. c.He should have explained the visual aid more fully. d.He should have avoided using more than two colors in the drawing. 20.During her speech about sail...
containing a cooling fan and an extremely bright light‚ with a long arm extended above it. At the end of the arm is a mirror that catches and redirects the light towards the screen. Anoverheadprojector can be used to enlarge images onto the screen or wall for audiences to view. ...
range in which a transparent sheet such as OHP sheet (overhead projector) will not undulate or wind round, and to maintain the printing speed and the... 福田 善行 被引量: 0发表: 2003年 FIXING DEVICE CONSTITUTION:An overhead projector(OHP) sheet is fixed again in a fixing unit 8 by pa...
a.He should have shown the drawing with an overhead projector. b.He should have created a handout and passed it among the audience. c.He should have explained the visual aid more fully. d.He should have avoided using more than two colors in the drawing. 20.During her speech about sail...