The Secret World Of Black Holes - Dr Becky Smethurst - #536

**Chris Williamson** (0:00)
Hello friends, welcome back to the show. My guest today is Dr. Becky Smethurst. She's an astrophysicist, author, YouTuber and a junior research fellow at the University of Oxford. Black holes are the weirdest, densest, most mysterious objects in the universe. However, they're not black and they're not holes. In fact, pretty much everything you know about them is probably wrong. Expect to learn why galaxies don't actually orbit black holes, why the biggest black hole in the universe needed an entirely different name, whether black holes can form without neutron stars, what happens when two black holes collide, why nothing can go faster than the speed of light, and much more. In other news, this episode is brought to you by Qualia Mind. General nutrition makes us all feel better, but great brain nutrition can be life-changing. Your focus and energy to grind toward your goals, learn new skills, or even be present in your relationships can be radically transformed with specialized brain supplements. Qualia Mind is the best nootropic that I've found. It's a research-backed blend of 28 high-purity, vegan, non-GMO ingredients into the best mental performance fuel on the planet. It supports focus, clarity, willpower, and mood, and is even formulated to support long-term brain health. Also, there is a 100-day money-back guarantee, so you can buy it and try it for 99 days, and if you do not like it, they will give you your money back. The reason I particularly like Qualia Mind is they've got a caffeine-free version, so if you are trying to reduce your caffeine down or if you're working later in the day, it means you can actually get some extra brain nutrition without having to wreck your sleep. Also, you can get it shipped to the US, UK, Ireland, Canada, Australia, and New Zealand, and there is a $100 discount plus an extra 15% off your first purchase if you go to neurohacker.com/modernwisdom. That's N E U R O hacker.com/modernwisdom. Use the code M W 15 at checkout for that extra 15% off and there is already $100 off right now. neurohacker.com/modernwisdom. In other other news, this episode is brought to you by Element. Element is a tasty electrolyte drink mix with everything that you need and nothing that you don't. It's a healthy alternative to sugary electrolyte drinks. Each grab and go stick replaces essential electrolytes with no sugar, no coloring, no artificial ingredients or any other junk. It contains a science backed electrolyte ratio of sodium, potassium and magnesium, which plays a critical role in reducing muscle cramps and fatigue while optimizing brain health, regulating appetite and curbing cravings. first thing in the morning, having this in a big glass of cold water will optimize your adrenal system. It'll mean that you don't need to have coffee for the first 90 minutes of the day. And it means that you're going to find yourself more supported and better hydrated throughout the rest of the day. Also, you can get a free sample pack of all eight flavors. All that you need to do is buy your first box from Element by going to drinklmnt.com/modernwisdom.
They've also got a no BS, no questions asked refund policy for an unlimited amount of time. And you don't even need to send the box back if you don't like it. That's how confident they are that you're going to love it. drinklmnt.com/modernwisdom. And in final news, this episode is brought to you by Let's Get Checked. Recent studies have shown that men's testosterone levels are dropping substantially since the 1980s at an average of 1% per year. Low testosterone can have all types of health effects on men, can cause you to lose muscle mass in your body, can affect your mood, your memory and even your sex drive. So if you're not performing in the gym or in the bedroom in the way that you would like, the culprit may be testosterone. Let's Get Checked are a world wide leader at home testing kits and their male hormone tests let you easily test your testosterone levels without leaving the house. You can order a testing kit delivered to you in discrete packaging with next day delivery. Once a sample arrives in the laboratory, confidential results are available from a secure online account within two to five days. The results are reviewed by a clinician and a member of the Let's Get Checked nursing team may call you to review your results as well. So if you want to get your hormone levels tested without having to leave your house, head to trylgc.com/modern. That's T R Y L G c.com/modern. Choose U S or U K at the top of the main page and put the code wisdom 25 in to get 25% off your first test. That's trylgc.com/wisdom and wisdom 25 But now, ladies and gentlemen, please welcome Dr. Becky Smethurst.