Kuv puas yuav tsum tau sau ntawv rov qab? No! Koj sau ib txwm thiab cov duab yees duab thim rov qabyog li koj cov neeg saib pom nws raug. Nws yeej muaj kev lom zem sim, txawm li cas los xij!
Lub teeb lub teeb ua haujlwm li cas?
Lightboard yog ib lub iav chalkboard uas puv lub teeb. Nws yog rau kaw cov lus qhuab qhia video. Koj fim rau koj cov neeg saib, thiab koj qhov kev sau ntawv ci ntsa iab ntawm koj xub ntiag.
Lub Lighboard ua haujlwm li cas?
Lub Teeb Lub Teeb
Lub teeb ci ntsa iab diode (LED) teeb tau muab tso rau hauv qab thiab sab saum toj ntawm iav thiab pom lub teeb nyob rau hauv lub iav pane. Thaum koj kos rau ntawm Lightboard nrog cov xim qhuav qhuav tshem tawm cov teeb pom kev zoo ntawm LED ua rau tus lej cim kom ci.
Leej twg invented lightboard?
Lub Lightboard tau tsim los ntawm Prof. Michael Peshkin ntawm Northwestern University - peb hloov nws tus qauv tsim los tsim ib qho ntawm Illinois.
Npauj npaim nqi npaum li cas?
Thaum muaj cov teeb pom kev ua ntej muaj rau kev yuav khoom, lub teeb pom kev zoo peb tuaj yeem tsim los ntawm ob peb yam khoom siv yooj yim. Professional-qib lightboards muaj rau $3000-$15,000.