An easel for laboratory work having a transparent top and a furrowed bottom for support and better observation of laboratory equipment positioned on a counter or other horizontal surface. To accomplish the above function, the controller determines whether an event occurs or not during displaying video data sent by the mobile terminal on the external display device and upon occurrence of an event, displays a screen for processing the event on the mobile terminal. A potential difference for write-in is set up between the sourcedrain regions while a write voltage is applied to the control gate, thereby causing electrons to be ballistically injected into at least one of the floating gates. Additionally, the unsteady nature of the turbulent vortical structures shed in the aft body wake region may produce increased dynamic buffeting and aft body heating by entraining nozzle jet exhaust \u2014requiring additional structural support, shielding, and vehicle weight. 5, and annealing the mixture at 800 to 900\xb0 C.