Russia's Kinzhal Mach 10 hypersonic weapon is a single stage Pegasus Rocket | NextBigFuture.com
- Russia has proclaimed the Kinzhal as a breakthrough mach 10 hypersonic missile.
- ICBM rockets have long been able to go to Mach 20.
- The Kinzhal is a shortcut hypersonic munition that while fast enough to evade enemy defenses, also lacks the maneuverability to accurately strike targets at long range.
- Babak Taghvaee, an expert on Russian warplanes, claimed in a tweet that just six MiG-31s have received the modifications necessary to carry the approximately 25-foot-long Kinzhal.
- The Kinzhal does not appear to have a hypersonic engine.
- Hypersonic engines start working at about mach 5.
- For a reusable hypersonic vehicle you would need a triple engine.
- Rockets can go all the way to mach 40+.
- Mach 33 is orbital velocity for earth.
- TBCC, or Turbine Based Combined Cycle propulsion system, is a turbine engine combined with a ramjet and scramjet.
Growing New Veins Could Make Life Better for People on Dialysis
- A new device, which helps patients grow new veins that make it easier to filter the blood, could mean the world to those who have to endure the procedure every few days for months or even years.
- Long-term dialysis users have a plastic tube implanted into their arm to facilitate the removal and injection of blood, because human veins are too fragile to endure the procedure every week for a long time.
- For this reason, Aditlys wants to equip patients to better cope with prolonged periods of dialysis, by helping them grow blood vessels that connect more easily to the machine.
- Compared with a plastic implant permanently stuck in the arm, the natural junction protects patients from the infections that are very common in this type of procedure.
Spotify's free version loses so much money that it takes 12 months for a paying user to cover the cost of the free music they already listened to
- And then, there's the $9.99 ad-free Spotify Premium service, where the company makes most of its subscription revenue.
- The company attributes those losses to the music licensing fees and royalties that it has to pay on every song that streams on its service.
- That's added up to $10 billion in music fees since Spotify debuted in 2008.
- Spotify CFO Barry McCarthy Spotify Spotify sees its free service as a marketing and acquisition expense, McCarthy said, and believes that it will pay off financially for Spotify once the company has the scale necessary to grow its margins.
- McCarthy, who served as CFO at Netflix from 1999 to 2010, said he saw how scale impacted the video streaming service's ability to make money.
- Long term, McCarthy said that Spotify is prioritizing that growth over profitability, but expects to have gross margins of 30 to 35%.
One in 4 UK bankers say their job is harming their health and mental wellbeing
- Investment banking, long seen as the pinnacle of the banking industry, but also as the most gruelling part of it, was more likely than other areas to negatively impact workers' health, the BSB said.
- Twenty nine percent of investment bankers reported their work having a negative impact on their health and wellbeing.
- Not only are a significant proportion of bankers negatively affected health-wise by their jobs, so too are many scared of what might happen if they speak up about their concerns, the BSB's third annual report said.
- Over a quarter of the 36,000 people surveyed by the BSB said that would be "worried about negative consequences for themselves if they raised concerns," although 60% said they would not.
- The Banking Standards Board was set up in 2015 by Britain's seven biggest banks as a measure to improve conduct in the industry in the wake of scandals like LIBOR.
I'm a Londoner who spent 2 weeks working in Madrid — here's everything that surprised me about daily life in Spain
- Though I was born in Canada and grew up in the Great White North, I was raised by Brits, and having now lived in London for nearly five years, I consider the UK my home.
- I've travelled quite a bit and am always up for exploring a new place or way of life, so after Business Insider España launched in December, I jumped at the opportunity to spend two weeks in Madrid getting to know the Spanish team.
- While it may only be a two-hour plane ride, the experience was pretty eye-opening.
- I'd been to Madrid before, just once a few years ago, but my knowledge was essentially limited to cerveza, tapas, siestas, and sunshine.
- From late, long, carb-heavy lunches to a sleek alternative to Uber, scroll down to see everything that surprised me about everyday life in Spain.
Stephen Hawking dies aged 76
- Stephen Hawking, the world-famous theoretical physicist, has died at the age of 76.
- Scientists and famous figures around the world are paying tribute to Hawking.
- Hawking transformed our understanding of black holes by combining the two pillars of 20th century physics, general relativity and quantum mechanics.
- He predicted that black holes should radiate a stream of photons, defying long-held beliefs that nothing, not even light, could escape their clutches.
- This prediction, dubbed Hawking radiation, is probably his most influential work, but Hawking spent his life probing many deep questions about the nature of space, time and the origins of the universe.
- As a pop-culture icon, he brought physics to the masses and inspired a generation of physicists, most famously with his book A Brief History of Time.
5 high-profile departures in 2 weeks for Trump's White House
- Washington (CNN) - President Donald Trump has tried to quell talk of chaos in his administration for days, but the last two weeks inside the West Wing have been anything but calm.
- Undersecretary for Public Diplomacy Steve Goldstein said Tillerson, who had been on a week-long tour of African nations until Tuesday morning, did not speak to Trump before his ouster and is unaware of the reasons behind the firing.
- Gary Cohn, Trump's top economic adviser, resigned from the White House last week after he voiced his fierce disagreement with the President's decision to levy steel and aluminum tariffs.
- John McEntee, Trump's longtime personal aide and bodyman, was fired and escorted from the White House on Monday, three sources with knowledge of the situation told CNN on Tuesday.
The future of startups isn't in New York or California — and I'm investing $150 million to prove it
- Last year, JD Vance and I launched Revolution's newest fund, the Rise of the Rest Seed Fund, to back more startups between the coasts.
- Some investors, particularly those based in Rise of the Rest cities, also recognized this opportunity years ago and have played an instrumental role in helping to build rising startup communities.
- These regional investors are critical, so the Rise of the Rest Seed Fund was created to be a partner in their efforts.
- For two days, fund representatives will share case studies, hear from some of the Rise of the Rest Seed Fund limited partners, meet with elected officials, and participate in working sessions.
- We look forward to being a catalytic force, helping to accelerate this process alongside the regional investors who have long believed in the great entrepreneurs building companies in their own backyard.
The voices of ancient women
- But here at the British Library we hold a number of ancient Greek private letters, written on papyri, that preserve glimpses of everyday life from a world long disappeared.
- One of the earliest British Library papyri to preserve a woman's voice is a petition from 235 BCE.
- A mother, Haynchis, wrote to an official, asking for assistance in a dispute involving her daughter.
- Possibly the earliest female hand in the collection is preserved in a letter dated 168 BCE.
- At the very end of the letter, which she probably dictated to a professional scribe, Isias added in her own shaky hand: “Farewell”.
- Aureliana’s application was preserved with the official archive of her city, and now it is held with other papyri at the British Library, alongside other papyri which preserve the voices of ancient women.
SoftBank is trying to poach young venture capitalists for its $100 billion Vision Fund
- The Vision Fund has retained the search firm Russell Reynolds to try and bolster its stable of vice presidents and directors, according to multiple people who have been approached by the fund.
- Venture capitalists are buzzing about the outreach in part because the recruiting experience at VC firms tends to be more organic and relationship-driven — courting younger talent gradually over lunches, through mutual friends and, for more senior roles, a sometimes years-long dialogue about the job.
- The Vision Fund over the last year has hired about 100 full-time people — in London, in Japan and here in Silicon Valley — but the pace at which they’re deploying the capital calls for more manpower to help find and execute technology deals across the globe.