The phrase "a powerful memory" is correct and usable in written English.
You can use it to describe a memory that has a strong emotional impact or significance.
Example: "The photograph brought back a powerful memory of my childhood summers spent at my grandmother's house."
Alternatives: "a vivid memory" or "a strong recollection."
But those who knew him also carry a powerful memory.
To understand why it is such a powerful memory for those of a certain vintage, it's necessary to understand the context in which it took place.
The initial spark was a powerful memory of encountering news reports of the hunger strike on television as an 11-year-old, before he grasped its political meaning.
A show of hands clearly illustrated that the group with the mind pictures did far better -- and that imagery can be a powerful memory aid.
Mandela was robust during his decades as a public figure, endowed with charisma, a powerful memory and an extraordinary talent for articulating the aspirations of his people and winning over many of those who opposed him.
He has a developmental disability, which is obvious to people who meet him, but he also has a rare and less apparent ability: Like the late Kim Peek, the inspiration for the film "Rain Man," George, 71, has a powerful memory for dates and numbers and facts.
He had a bizarrely powerful memory for pro athletes and their uniform numbers.
As a result of increased computing power and powerful memory systems, a fully computer integrated system is now possible, however, achieving an integrated framework for operational tasks is quite complex.
He was a gentle Swede, an orderly man, a man of powerful memory who could recall exactly how he had gone about laying the concrete steps at his cabin 30 years before and recall this in such excruciating detail that you wanted to jump out the window.
In the past decade, however, researchers have created a number of powerful memory forensics tools that expand the scope of digital forensics to include the examination of volatile memory as well.
My second viewing of Yentl was accidental, yet an even more powerful memory.
