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By Laurice Angeles
In the science world last week:
Transwomen in female sports: What do scientists say?
Find out if we need to stop using period-tracking apps post-Roe.
Sydney experiences life-threatening flood.
Other interesting stuff:
Woolly mammoth are Manny and Ellie from Ice Age!
How do fireworks get their vibrant colors?
Lead author of the 2021 study Dr. Timothy Roberts says that two years is a more realistic waiting period of a transitioning Olympic athlete than the current one year period.
According to his findings, “transwomen still had a 9% faster mean run speed after the 1 year period of testosterone suppression” from the 15 to 31% prior to hormone therapy.
However, medical physicist, transgender runner, and author of the 2015 study Joanna Harper says Roberts’ suggested longer waiting period is not needed. According to her, Roberts’ study ultimately shows that transgender women can perform more like cisgender women in athletic activities.
“All that is necessary is for trans women to perform more like cisgender women than like cisgender men,” NBC News quoted Harper.
Harper’s 2015 study found out that “trans women ran at least 10 percent slower after beginning hormones.” She concluded that “they did no better against cisgender female runners than they had previously done against cisgender men.”
“You don’t need to stop tracking your period.”
With Roe v. Wade recently reversed, abortion-rights advocates fear that digital information from period-tracking applications may be used to prosecute app users. But experts say that “period trackers are not the primary form of digital evidence to be used in abortion prosecutions today.”
At post-Roe, however, what exactly is legal and what’s not is still unclear. But other experts say prosecutors may more likely use digital info like text messages, emails, and search histories to show intent of having abortion rather than info from period-tracking apps.
For digital info like location data, law enforcement essentially has no reason to use them for abortion prosecutions unless abortion was done in a state where it is illegal. No state laws ban people from travelling to get an abortion.
Google, however, will now automatically delete information or location data about users visiting abortion clinics and other health-related places as stated in their new privacy protection post last Friday.
Sydney experiences heavy rains, rising floodwaters, and overflowing rivers last week.
Thousands of Sydney residents were asked to evacuate their homes in what authorities called life-threatening emergencies.
The Bureau of Meteorology made a severe weather warning which means heavy rain, flash floods, and winds up to 90 kilometers (55 miles) per hour along the coast of Sydney and other parts of New South Wales state.
Other interesting stuff:
In case you missed it, a mummified baby woolly mammoth was found in Canada, and its hair, skin, and tusks are still intact.
Just in case you didn’t know, woolly mammoths are already an extinct species coming from the ice age about 2,580,000 to 11,700 years ago. Manny and Ellie from the movie series Ice Age are woolly mammoths!
The fireworks on the Fourth of July were sure bright and vibrant! Makes us wonder—how do fireworks get their colors?
It’s all about chemistry—certain elements, when heated, display different colors.
Red - Lithium, Strontium
Orange - Calcium
Green - Barium
Blue - Copper
White - Aluminum
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