Hey, guys! Today we are making diy face masks. One option uses cotton pillowcase fabric as well as coffee filters. These are not a substitute for N-95 facemask, they only offer some protection. But ...

Promising review: "Perfect for attaching our backpacks and totes to the roller bags as we maneuvered through the airport.

Abstract: NP-hard combinatorial optimization problems (COPs) are known to be very complex and expensive to solve with traditional computers. COPs can be mapped onto many different kinds of ...

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Masks were a common sight during the Covid pandemic, and they’re making a comeback (Archive picture: Getty) People on public transport are wearing face coverings again, while hospitals are asking ...