Katherine Johnson, the NASA Mathematician Who Advanced Human Rights with a Slide Rule and Pencil


NASA chief Charles Bolden recalls the historic trajectory of the “human computer” who played a key role in the Apollo 11 moon landing, and as a female African-American in the 1960s, shattered stereotypes in the process.

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When I was growing up, in segregated South Carolina, African-American role models in national life were few and far between. Later, when my fellow flight students and I, in training at the Naval Air Station in Meridian, Mississippi, clustered around a small television watching the Apollo 11 moon landing, little did I know that one of the key figures responsible for its success was an unassuming black woman from West Virginia: Katherine Johnson. Hidden Figures is both an upcoming book and an upcoming movie about her incredible life, and, as the title suggests, Katherine worked behind the scenes but with incredible impact.

When Katherine began at NASA, she and her cohorts were known as “human computers,” and if you talk to her or read quotes from throughout her long career, you can see that precision, that humming mind, constantly at work. She is a human computer, indeed, but one with a quick wit, a quiet ambition, and a confidence in her talents that rose above her era and her surroundings.
“In math, you’re either right or you’re wrong,” she said. Her succinct words belie a deep curiosity about the world and dedication to her discipline, despite the prejudices of her time against both women and African-Americans. It was her duty to calculate orbital trajectories and flight times relative to the position of the moon—you know, simple things. In this day and age, when we increasingly rely on technology, it’s hard to believe that John Glenn himself tasked Katherine to double-check the results of the computer calculations before his historic orbital flight, the first by an American. The numbers of the human computer and the machine matched.

With a slide rule and a pencil, Katherine advanced the cause of human rights and the frontier of human achievement at the same time. Having graduated from high school at 14 and college at 18 at a time when African-Americans often did not go beyond the eighth grade, she used her amazing facility with geometry to calculate Alan Shepard’s flight path and took the Apollo 11 crew to the moon to orbit it, land on it, and return safely to Earth.

I was so proud of Katherine as I sat with hundreds of other guests in the East Room of the White House and watched as she received the Presidential Medal of Freedom from President Obama last year. Katherine’s great mind and amazing talents advanced our freedoms at the most basic level—the freedom to pursue the biggest dreams we can possibly imagine and to step into any room in the country and take a seat at the table because our expertise and excellence deserve it. Katherine, now 97, took her seat without fanfare. As far as not being equal was concerned, she said, “I didn’t have time for that. My dad taught us ‘you are as good as anybody in this town, but you’re no better.’ ” I’d posit that Katherine was better—not only at math but also at applying her talents with the precision and beauty possible only in mathematics. She achieved the perfect parabola—casting herself to the stars and believing she could chart the journey home.

New US advice on cholesterol drugs.


A third of all adult Americans should consider taking cholesterol-lowering statin drugs, according to the first such new guidelines in a decade.

It is estimated that 33 million Americans – 44% of men and 22% of women – would meet the threshold for taking statins, under the advice issued by two leading US medical organisations.

File photo of Atorvastatin Calcium tablets, a generic form of Lipitor, which is being sold under a deal with Pfizer.

The drugs are currently recommended for 15% of adults.

The guidelines for the first time take aim at strokes, not just heart attacks.

Under the current advice, statins are recommended for those who have total cholesterol over 200 and LDL, or “bad cholesterol”, of over 100.

But the new recommendations, issued by the American Heart Association and American College of Cardiology, place much less emphasis on setting numerical cholesterol-lowering targets for patients.

The advice introduces a new formula for calculating a patient’s risk of heart disease based on such factors as age, gender and race, instead of high cholesterol levels alone.

“This guideline represents a departure from previous guidelines because it doesn’t focus on specific target levels of LDL, or bad cholesterol, although the definition of optimal LDL cholesterol has not changed,” Dr Neil Stone, author of the report, said in a statement.

It is thought that more women and African-Americans, who are deemed to be at higher risk of stroke, could find themselves taking statins if they follow the guidelines.

The panel focused on four groups they believe statins would benefit most: people already suffering from heart disease; those with LDL levels of 190 or higher because of genetic risk; older adults with type 2 diabetes; and older adults with a 10-year risk of heart disease greater that 7.5%.

The panel also recommended a “diet pattern” based on vegetables, fruits and whole grains and moderate to vigorous exercise three to four times a week for all adults.

Roughly half of those drafting the guidelines had financial ties to makers of heart drugs.

But panel leaders said that no-one with industry connections was allowed to vote on the actual recommendations.

“It is practically impossible to find a large group of outside experts in the field who have no relationships to industry,” Dr George Mensah, of the AHA, told the Associated Press news agency.

He said the guidelines were based on solid evidence.

Many of the patents on popular statins, such as Lipitor and Zocor, have expired, with generic versions being offered cheaply.

But Crestor, a statin made by AstraZeneca, remains under patent, with sales of $8.3bn (£5.2bn) in 2012.