The original title, "F = G (m1 x m2) / d2," was the formula for Isaac Newton's equation for gravity. Before the air date, the title was renamed "The Force of Gravity."
Deke mentions being the same age as his grandparents, Fitz and Simmons. Jeff Ward (Deke) is actually a year minus a day older than Iain De Caestecker (Fitz) and nine months older than Elizabeth Henstridge (Simmons).
When Talbot explains his new powers to his son, he says "I can even fly!" Adrian Pasdar portrayed the character Nathan Petrelli in Heroes (2006), who also had the ability to fly.