Answer:
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
I am the signature stroll of ducks and penguins
Blade to blade I always win My foe laid low and even. Yard by yard through thick and thin I'm busiest in season.
As a state in America I am round on both sides and high in the middle.
I have two eyes in the front and a lot of eyes on my tail
The answer I give is yes, but what I mean is no. What was the question?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic