内容摘要：“A big misconception is that you can just wear them a couple hours a day. Your brain does better with it if you use them most of the day. Your brain needs to adapt to hearing sounds it hasn’t heard for a while, and it takes the brain awhile to relearn how to process all those sounds,” says Stamper.

“A big misconception is that you can just wear them a couple hours a day. Your brain does better with it if you use them most of the day. Your brain needs to adapt to hearing sounds it hasn’t heard for a while, and it takes the brain awhile to relearn how to process all those sounds,” says Stamper.

“Everyone deserves dignity in death,” Gary said. “And being stored in a drawer inside a laboratory does not do that.”The soldiers fought in the Battle of Williamsburg, a bloody engagement on May 5, 1862. The fighting was part of the Peninsula Campaign, a major Union offensive that tried to end the war quickly.

The campaign’s failure that summer, stalling outside the Confederate capital of Richmond, informed President Abraham Lincoln’s decision to end slavery.In his first inaugural address, Lincoln said he intended to reunite the nation with slavery intact in the Southern states, while halting its westward expansion, said Timothy Orr, a military historian and professor at Old Dominion University.But Lincoln realized after the campaign that he needed a more radical approach, Orr said. And while the president faced political pressure for emancipation, freeing people who were enslaved served as “another weapon to defeat the Confederacy.”

“He becomes convinced that slavery is feeding the Confederate war effort,” Orr said. “It had to be taken away.”Bigger and bloodier battles followed Williamsburg, Orr said, but it was “shockingly costly for both sides.”

Roughly 14,600 Union soldiers fought about 12,500 Confederates, Carol Kettenburg Dubbs wrote in her 2002 book, “Defend This Old Town.” The number of Union killed, wounded, captured or missing was 2,283. The Confederate figure was 1,870.

The fighting moved north, while a Union brigade occupied the southern city. Confederate soldiers too wounded for travel were placed in homes and a church, which was converted into a hospital.Soon, the workers began to see the images becoming clearer, with gray sections returned to the original white painted by Vanka.

“It’s really fascinating, especially to see from below, a lot of these details that were lost coming back, and seeing what his initial vision was,” conservation technician Christina Cichra said.Workers also cleaned the aluminum leaf that forms backgrounds, as in the arch-shaped one behind St. Mark and St. Matthew.

They used a solution with neutral pH — neither alkaline nor acidic, both of which would damage the material.Parts of the aluminum leaf have deteriorated entirely. The team’s original idea was to replace those sections with new leaf, but it was too shiny and didn’t match. After some experimentation, they decided on a mixture of watercolor and other materials.