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Paint An Owl With Me! Beginner Watercolor How To
ADDITIONAL TUTORIALS 50 Ways to Fill a Sketchbook | Funny Face Doodles: • 50 Ways to Fill a Sketchbook | Funny ... How to ...
Swissinfo20h
Swiss authorities draw up new rules to manage PFAS
The Swiss federal authorities are working on drawing up regulations for toxic PFAS “forever chemicals”. A government report is expected by the end of the year.
Science Daily19h
Fully 3D-printed electrospray engine
Researchers demonstrated the first fully 3D-printed, droplet-emitting electrospray engine. The low-cost device can be fabricated more quickly than traditional thrusters, potentially from on board a ...