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Simple Inventions You Can Make with a Pencil and Pen
Explore simple and fun inventions you can create at home using just a pencil, pen, and scissors. These easy DIY ideas require minimal materials, yet they bring out creativity and practicality. Whether ...
Space.com2d
Moon or Mars? Why not both, acting NASA head Janet Petro says
NASA still views the moon as a stepping stone to Mars, even though Elon Musk has dismissed Earth's nearest neighbor as "a ...