

News
Quantum ‘compass’ technology aids in navigation without use of GPS satellites
Scientists from Imperial College London and M Squared, a photonics and quantum technology company, have created a portable quantum accelerometer which enables location tracking without the aid of GPS satellites. As demonstrated at the National Quantum Technologies Showcase 2018 in London, the device utilizes ultra-cooled atoms and lasers to measure position with precision made possible by quantum mechanics. The system is currently designed to be used for navigating large vehicles such as ships and trains, but smaller-scale devices will be available as the technology develops.
Quantum accelerator in the lab. | Credit: Imperial College London
The reliance on global navigation satellite systems such as GPS has a few significant shortcomings that the quantum accelerometer would overcome. Satellite signals can be blocked or jammed, interfering with the systems that rely on the data being provided. Threats such as electromagnetic pulse (EMP) attacks on a massive scale, now closer to reality with nuclear capability developments around the world, would cripple any technology relying on satellite systems.
The financial burden of GPS failure is also a serious consideration driving the innovation behind this device. In M Squared’s press release announcement, it was estimated that each day without GPS services in the United Kingdom would cost the country 1 billion pounds. Since it’s a self-contained system not reliant on external signals, a quantum accelerometer would not be at risk for these types of security or financial fallouts.

A close up of the quantum accelerator. | Credit: Imperial College London
Even without the consideration of electronic attacks and satellite failures, a much smaller version of this technology could overcome day-to-day problems with regular GPS use. Anyone who has ever used a map application in a city environment has likely experienced blockages from the buildings disrupting satellite signals. A quantum accelerator would calculate its position based on its high precision velocity measurements rather than GPS information, thus eliminating never-ending “recalculating” type errors that current mapping devices are prone to receive.
General accelerometers are already found in common devices like cell phones and video game controllers. Overall, they function by calculating changes in the velocity of an object (phone, controller, etc.) and that data is used for whatever its intended purpose. For location-driven applications, however, the measured position loses accuracy without feedback from external sources such as GPS. For example, after a few street turns (or less), a mapping application would need to confer with a satellite to recalculate the new position of the car in motion. The high precision of a quantum accelerometer does not have this limitation, thus eliminating the need for a GPS signal.
When atoms are cooled to ultra-cold levels, their quantum behavior emerges and can then be measured by a laser beam acting as a ruler. The team behind the quantum accelerometer device had already been developing other commercial quantum technologies prior to the current one, so when the need for arose for measuring and cooling atoms, a solution was already in place via the team’s universal laser system developed for gravity measurements. This laser both cools and measures the atoms involved in the accelerometer’s device’s movement calculations.
This quantum device is representative of the transition of quantum mechanics from the science laboratory to real-world applications. Besides navigational solutions, Professor Ed Hinds, Director of the Centre for Cold Matter at Imperial College London, described gravity measurements, mapping gravitational forces to look for minerals, and looking inside vehicles to diagnose problems as a few suggestions for other applications. “[The potential applications] …all come from the fantastic sensitivity and reliability that you can only get from these quantum systems.”
Watch the video below to see the quantum team tell more about the device.
Elon Musk
Elon Musk affirms Tesla commitment and grueling work schedule: “Daddy is very much home”
The remarks came as Tesla shares crossed the $400 mark on the stock market.

Tesla CEO Elon Musk reiterated his commitment to the electric vehicle maker and its future projects this week, responding to speculation following his $1 billion purchase of TSLA stock.
The remarks came as Tesla shares crossed the $400 mark on the stock market, extending a rally fueled in part by Musk’s TSLA purchase.
Elon Musk’s nonstop work schedule
Amidst the reaction of TSLA stock to Musk’s $1 billion investment, Tesla owners such as @greggertruck noted that “Daddy’s home.” Musk replied, stating that “Daddy is very much home.” He then shared details of a packed weekend of work, which was definitely grueling but completely within character for a “wartime CEO.”
Musk did note, however, that he had lunch with his kids during the weekend despite his extremely busy schedule.
“Daddy is very much home. Am burning the midnight oil with Optimus engineering on Friday night, then redeye overnight to Austin arriving 5am, wake up to have lunch with my kids and then spend all Saturday afternoon in deep technical reviews for the Tesla AI5 chip design.
“Fly to Colossus II on Monday to walk the whole datacenter floor, review transformers and power production (excellent progress), depart midnight. Then up to 12 hours of back-to-back meetings across all Tesla departments, but with a particular focus on AI/Autopilot, Optimus production plans, and vehicle production/delivery,” Musk wrote in his post.
Wartime CEO
Wedbush analyst Dan Ives described Musk as operating in “wartime CEO mode,” highlighting autonomous driving and AI as a trillion-dollar market opportunity for Tesla. Musk reiterated this point late last month as well, when he outlined the several projects he is juggling among his numerous companies. At the time, Musk stated that he was busy with Starship 10, Grok 5, and Tesla V14. This was despite his notable presence on X.
With Tesla Master Plan Part IV being partly released, the company is entering what could very well be its most ambitious stage to date. To usher in an era of sustainable abundance, Tesla would definitely require a “wartime CEO,” someone who could remain locked in and determined to push through any obstacles to ensure that the company achieves its goals.
News
Elon Musk confirms cryptic X post was related to SpaceX, not TSLA stock
Musk shared his update in a post on social media platform X.

Elon Musk has confirmed that a cryptic post he shared earlier this month was related to his private sale enterprise, SpaceX, not electric vehicle maker Tesla.
Musk shared his update in a post on social media platform X.
Musk’s cryptic post
Earlier this month, the CEO posted the cryptic words “You’ll Thank Me Later” on X. The post quickly gained attention on social media, as Tesla watchers and Elon Musk fans speculated on what the words could mean. With the announcement that Musk has purchased $1 billion of TSLA stock in the open market, some speculated that the cryptic post was a teaser of sorts to shareholders.
Musk’s massive TSLA purchase was the biggest in history, and it also stood as a notable vote of confidence for the company as it attempts to enter a new era led by robots, AI, and autonomous driving. This was likely one of the reasons why Tesla stock saw a notable rise on Monday’s trading. In another post, however, Musk confirmed that his cryptic post was not in any way related to his stock purchase.
All SpaceX
Considering that all the words in Musk’s post started with an uppercase letter, some space fans immediately speculated that the CEO was teasing something related to SpaceX. The company’s three drone ships, Just Read the Instructions (JRTI), Of Course I Still Love You (OCISLY), and A Shortfall of Gravitas (ASOG), after all, follow similar naming styles.
This was one of the reasons why some TSLA shareholders noted on X that Musk’s post was likely SpaceX-related. In response to one of these comments, Musk stated that these speculations are “Correct.”
The only question now is what exactly Musk was referring to in his post. Perhaps the CEO really was hinting at the name of the drone ship that will be tasked to retrieve Starship in the middle of the ocean.
News
Tesla Model Y leads as weekly registrations in China hit Q3 high
Out of Tesla China’s 15,350 registrations, the Model Y once again accounted for the majority.

Tesla recorded 15,350 insurance registrations in China during the week of September 8–14, marking a 7.3% increase compared to the prior week. The figure also represents the highest weekly result so far in the third quarter of 2025.
Model Y still leads demand
Out of the 15,350 registrations, the Model Y once again accounted for the majority. Data shows 9,460 registrations for the standard Model Y, complemented by 1,030 units of the newly launched extended wheelbase, six-seat Model Y L. Tesla also logged 4,860 Model 3 sedans for the week as well, as noted in a CNEV Post report.
The Model Y L, which debuted in late August, registered a modest uptick from the 900 registrations it saw the week before. Volumes remain relatively low, suggesting that the variant will not meaningfully change Tesla’s third-quarter sales trajectory. That being said, Tesla China’s previous comments about the Model Y L’s demand suggest that an uptick in registrations may be coming in the next weeks.
The ramp of the Model Y L will likely be a notable topic among Tesla watchers, as its ramp will still be quite a task despite the vehicle being just a new variant of the all-electric crossover. With this in mind, meaningful numbers of Model Y L registrations may hit their pace in the next quarter instead.
Tesla China’s momentum
As per data from the China Passenger Car Association (CPCA), Tesla’s retail sales in August 2025 totaled 57,152 units. That figure marked a 9.9% decline from August 2024’s 63,456 units, but a significant 40.7% increase from July’s 40,617 deliveries.
Quarter-to-date, Tesla China’s results show a 34.4% gain compared to the previous quarter but remain down 11% year-over-year. Year-to-date, Tesla is down about 7% in China versus the same period in 2024. With only a couple more weeks before the end of the third quarter, Tesla China’s registrations may help determine whether the company could catch up to its 2024 numbers this year.
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