Hand holding illuminated incandescent bulb against black chalkboard, representing idea or concept
Schlüsselwörter
bulb,
hand,
illuminated,
blackboard,
idea,
concept,
light,
holding,
electric,
education,
cognition,
bright,
inspiration,
learning,
thought,
thinking,
creative,
solution,
innovation,
design,
electricity,
power,
start,
invention,
energy,
black,
background,
vintage,
school,
brain,
imagination,
wisdom,
understanding,
modern,
artificial,
glowing,
success,
teacher,
student,
study,
intellectual,
discovery,
development,
research
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