When Carter gets the phone call about the bank robbery, Kevin's milkshake has less liquid than the next scene, even though he is drinking it.
When Fargo and Holly are talking in the Rotunda, there is an extra with dark hair, mustache and beard wearing a sage green lab coat coming down the stairs behind them twice from two different areas, and then he is in another area seconds later Holly almost runs into him when she turns and walks away from Fargo.
Holly Marten states that, once they establish a base on Titan, they will be able to explore outside the galaxy. With the current level of technology, even Eureka enhanced technology, it's unlikely to the point of absurdity that a Titan base would allow humans to explore outside the galaxy. Marten likely meant that a Titan base would allow humans to explore outside the solar system.
Henry says the Higgs field interacts more strongly on denser materials than less dense. Matter has mass by interacting with the Higgs field. It interacts with all matter equally.
The manner in which Carter is holding onto the medicine ball in order to reach the bank would not secure him to it. Colin Ferguson is clearly holding onto the cable (which has been digitally removed) holding up the medicine ball.
When Alison tells the guy handling the new equipment to be careful, her lips aren't moving with her words.