Category: Computers

Cycling has always been a numbers game, and bike computers are an essential tool for any cyclist looking to track and improve their performance. These powerful little devices offer plenty of driving data that you can use during races or long trips, even if you just want to know how far or how fast you're driving. While features vary from computer to computer, the best bike computers should be easy to use, provide accurate data, and offer a variety of features to help riders better understand how their bodies work and react. from trip to trip.

These devices provide valuable cycling metrics such as distance, speed, elapsed time, heart rate and cadence, allowing cyclists to measure their progress and set goals. The best bike computers have a clear, easy-to-read display with customizable screens and data fields, as well as user-friendly and intuitive controls. Durability and long battery life are also important, as riders can use cycling computers for long distances in a variety of weather conditions. Connectivity options such as Bluetooth and ANT+ compatibility can enhance the functionality of a cycling computer by allowing cyclists to connect to other devices or apps and track their progress over time.

With so many options available in the market, choosing the best bike computer can be a daunting task. Each unit has its own unique features and benefits, and the choice ultimately comes down to the needs and preferences of each driver. In this article, we take a look at the best cycling computers available today and compare their features, performance and price. Whether you're a cyclist, casual rider, gravel biker, mountain biker or road biker, our detailed guide has everything you need.

Garmin Edge 1030 Plus

Screen Size : 3.5 inches | Touch screen : Yes Color : Yes Autonomy : 24 hours Weight : 124 grams

The Garmin Edge 1030 Plus bike computer offers several advanced features such as navigation, learning, safety and connectivity that set it apart from other devices on the market. The bike computer's large 3.5-inch color touchscreen is clear and easy to read, and can be configured to display up to 10 data fields on one screen at a time. This allows you to monitor a wide range of indicators simultaneously.

The Edge 1030 Plus comes preloaded with turn-by-turn directions and detailed Garmin bike maps. Some of the advanced navigation features include Trendline Popularity Routing, which uses Garmin Connect data to suggest the best bike routes based on where other cyclists have been, and ClimbPro, which provides real-time information about your current and future climbs, including slopes. Increased distance and height.

Advanced training metrics such as VO2 max, recovery time, training load, heat and altitude acclimation, nutrition, hydration and more help you train smarter to improve your performance. The device also integrates with TrainingPeaks and other training platforms to create personalized training plans.

The Edge 1030 Plus has a built-in incident detection system that sends a message informing emergency contacts of your location when an accident is detected. It also has a feature called GroupTrack that lets you track your cycling buddies in real-time.

The Edge 1030 Plus is compatible with ANT+ and Bluetooth sensors, allowing you to connect it to heart rate monitors, power meters and other cycling accessories. It also has Wi-Fi connectivity for easy data transfer to other apps and software updates.

With a long battery life of up to 24 hours, this cycling computer is a great choice for serious cyclists looking to take their training and riding to the next level.

Advantages:

• Large color touch screen
• Event detection
• Long battery life
• Advanced Performance Tracking Metrics

Defects:

• Expensive
• The glossy surface of the screen can be difficult to read in direct sunlight.

Wahoo V2 Element Bolt

Screen Size : 2.2 inches | Touch screen : No Color : Yes Battery life : 15 hours Weight : 68.38 g

The popular Wahoo Element Bolt is famous for its practical design, compact size and long battery life. It's a great choice for cyclists who want a reliable, easy-to-use device that can track your performance without getting in the way.

One of the best things about the Element Bolt is its compact design. It's smaller and more aerodynamic than other bike computers on the market, making it ideal for riders who want a clean cockpit and minimal friction. Despite its small size, the Element Bolt features a crisp, easy-to-read display that displays up to nine customizable data fields at once.

Element Bolt is also known for its user-friendly design. Other devices like power meters and heart rate monitors are easy to install and connect to, and the free utility makes it easy to customize screens and data fields. The app allows cyclists to sync their data with popular activity tracking apps like Strava and TrainingPix.

The bike computer offers a number of basic performance tracking features, but you won't get insight into advanced metrics like VO2 max or training load. The Element Bolt also has a good battery life of up to 15 hours on a single charge.

Advantages:

• Customizable LED strips that can visually display your speed, power or heart rate
• Uses Wahoo Smart Trainer
• It's easy to use (the device and connected apps are intuitive) and customizable

Defects:

• Relatively small screen
• Device navigation is limited
• Basic Performance Tracking

the most famous

Blacksmith 2

Screen size : 3.2 inches Touch screen : Yes Color : Yes Battery life : 14 hours Weight : 130.8 g

The latest model of the Hammerhead Karoo bike computer is lighter and smaller than the previous model and has many features. The Karoo 2 features a large 3.2-inch high-resolution color touchscreen that is scratch-resistant and easy to read in direct sunlight. When things go wrong, the display can be controlled using the side buttons and can also be configured to display up to 10 data fields at the same time.

The bike computer offers great navigation for cycling with turn-by-turn audio guidance, instant automatic rerouting when you miss a turn and uphill warnings with grade information to help you navigate.

Karoo 2 also offers advanced performance monitoring features such as power measurement settings, advanced data analysis and automated FTP calculations. It supports ANT+ and Bluetooth connectivity to pair all your sensors and sync with apps to track your progress over time. Pair it with most Turbo Trainers and Smart Trainers for indoor riding.

Advantages:

• Large high resolution color touch screen
• Advanced navigation options

Defects:

• Short battery life
• Limited functionality of the program

Garmin Edge 840 is solar powered

Screen size : 2.6 inches Touch screen : Yes Color : Yes Battery life : 32 hours Weight : 88.9 g

The new Garmin Edge 840 Solar bike computer features a solar-powered lens that extends battery life up to 60 hours in power-saving mode, making it ideal for multi-day rides in remote locations where power is available. The limited device has both touchscreen navigation and control buttons as an alternative to menu navigation, especially when wearing gloves. In addition, multi-band GPS technology allows you to accurately track your rides even in difficult environments with weak signals, such as dense forests or urban areas.

In addition to solar charging, another feature of the Garmin Edge 840 cycling computer is the adaptive training function combined with a power sensor and heart rate monitor. The device provides information on power and endurance throughout the course, so you know how much gas is left in the tank to push harder or hold on. This will give you information to help you train more efficiently and improve your performance based on your training load, recovery time and upcoming event demands.

Advantages:

• Solar charging to extend battery life
• adaptive training
• Multiband GPS

Defects:

Brighton Rider 750

Screen Size : 2.8 inches | Touch screen : Yes Color : Yes Autonomy : 20 hours Weight : 94 grams

While the Brighton Rider 750 is fully functional, it's available for under $300, making it a great option for riders on a budget. The device has a clear and easy-to-read 2.8-inch color touch screen and can be configured to display up to 10 data fields at once.

The device offers turn-by-turn directions and has a built-in altimeter for accurate elevation data. It comes preloaded with OpenStreetMap and is compatible with popular mapping services like Commute and Trailforks, making it easy to plan and display routes.

The Ryder 750 offers a number of key performance tracking features such as heart rate monitoring, power measurement settings and advanced data analysis. The device also has a built-in training mode that allows cyclists to create personalized workouts based on their training goals.

It also supports ANT+, Wi-Fi and Bluetooth connectivity, allowing riders to connect other devices, external sensors and third-party apps to track their progress over time. In terms of battery life, the device provides an impressive 20 hours of continuous use, making it a reliable companion even on the longest day trips.

Advantages:

• Long battery life
• Color touch screen
• Easy on the wallet

Defects:

• Intuitive user interface

Lesin Mega XL

Screen Size : 2.7 inches | Touch screen : No Color : No Battery life : 48 hours Weight : 83 grams

The Lezyne Mega XL GPS bike computer has an impressive battery life of up to 48 hours, making it ideal for long rides and multi-day rides. This is complemented by a large, easy-to-read display that provides clear information and navigation information in all lighting conditions, including direct sunlight, despite the lack of colour, and can be adjusted for horizontal or vertical viewing.

The Mega XL GPS is incredibly versatile, with a wide range of features and connectivity options to suit a wide range of riders and activities. Wireless connectivity supports the integration of third-party apps and sensors, including a power meter, cadence sensor, and heart rate monitor. The device supports GPS, GLONASS and Galileo satellite navigation systems for excellent GPS connectivity in various environments and includes preloaded maps with turn-by-turn navigation for on- and off-road routes. The internal memory is enough to store maps, routes and travel data – up to 800 hours.

It also comes with a barometer and accelerometer that provide accurate altitude, ascent and descent data, making it useful for other adventures like camping or backpacking.

Advantages:

• Battery life is impressive
• Large high contrast screen
• Good value for money

Defects:

• Simple user interface
• No color screen
• Interactive turn-by-turn navigation requires phone pairing.

How we choose the best bike computer

As dedicated cyclists with years of experience, we've compiled a shortlist of top-quality devices based on our own experience and online reviews. Before making a final choice, we compare potential options, evaluate their features, specifications, expert and customer reviews. Because bike computer technology is constantly changing and improving, we review this list frequently and update it as necessary to ensure your hard-earned money is spent on the latest equipment. This list was last updated in April 2023.

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Member Amy Jury has used or owned many of the bikes on this list, so we can confidently recommend each one. Our staff and contributors are highly experienced in testing and validating all types of cycling equipment, and we monitor the wider cycling industry to ensure we test the latest computers. Through our research and extensive testing, we know which devices are right for each type of rider, so we've researched bike computers designed for different needs to make sure there's a choice that fits your ability.

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There are two things that keep me from expanding my collection of old computers: the cost and the space needed to store them. I have an old original TRS-80 and an old serial station (see video below). However, she abandons Data General's equipment and loses her old 1802 COSMAC Elf due to flooding. There have been many copies of older computers with varying degrees of accuracy, and they tend to be cheaper and smaller than the originals. I have an Altair replica, an Elf replica and a KIM-1 replica.

However, the cost and expense of real and replicas is hard to justify. The situation is even worse with really large machines, some of which require special power or cooling and are difficult to maintain. Another option, of course, is software emulation. Options like SIMH and Hercules work well, but they aren't always graphic and require a lot of work to set up a machine to play for hours or show a student how it was done in the good old days.

On the other hand, there are some older PC emulators that run right in your browser. No software to install, no hardware to set up, and a lot of it is graphics related. I know a lot of people don't want to post their work on a "cloud service", but I'm willing to risk a 30-line BASIC program guessing your number.

• PC/OSI are actually two different emulators, one for the IBM PC (which I can hardly call an old PC) and the other for the Ohio Scientific Challenger 1P. The site has many ready-made demos (including Windows 1.0) and you can also set up your own. Or maybe you prefer to play Wolfenstein and other games.
• Mac – If you don't like Windows, you might like Mac OS 7.
• Amiga. The Amiga had many features ahead of its time and you can try the Amiga 500 here.
• I still have the TRS-80 – Model III, but you can play VR in your browser.
• COSMAC Elf – The COSMAC Elf was the first computer I personally owned and this site contains a very detailed graphical version of the system along with some extras.
• KIM-1 was a very useful single computer that deployed the KIM 6502. This version of the browser gives you the feel of an old hobbyist computer.
• Altair – You need Java, but this emulator allows you to experience a computer that can start the home and hobby computer market.
• PDP/11 – Before Linux, there was Unix. This page allows you to run Unix 6 on a virtual PDP/11. The sixth version is so old that you should know that the cd command didn't exist yet (try chdir). Use the # key to go back and the @ key to delete a line (imagine you are using a vulture typewriter). If you are tired of capital letters, read the link on the site.
• EDSAC – Dr. Wilkes' EDSAC was one of the first modern computers to actually work. His team at Cambridge developed many of the approaches we take for granted today. This is a rare machine that can be programmed and you can refer to your computer emulator manual for more on how to program it.
• ENIAC. If you're having trouble programming EDSAC, try this (but you'll need a Java-enabled browser).

I'm sure there are others, but this is enough to get you started and I'm sure others will pick up on the comments. If you want to evaluate the difference between loading a web page and loading it on a real device, you can compare a PDP/11 recording with a real recording. There are also sites to connect to real old hardware, which can be the best of both worlds. For another crossover (modern simulator and old serial station) you can watch my video below where I try to save the galaxy from the Klingons.

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The 2022 Nobel Prize in Physics was awarded to Alan Aspect, John Clauser, and Anton Zeilinger for their work on "quantum nonsense" in quantum mechanics. Quantum spacelessness is a phenomenon where connected particles can instantly interact with each other regardless of distance.

Imagine you have a pair of gloves. These gloves form a pair and are therefore connected in a certain way, albeit in different ways. One day you will pack one glove in a suitcase and go on a trip to another country, while the other glove will stay at home. If you are not a resident of Quantum, if you change the color of the gloves you brought, the gloves you take home will immediately change color, even if they are very different.

Decentering violates most concepts predicted by classical physics, where particle properties are predetermined and changes occur either directly through physical interactions or through high-speed diffusion fields. Decentralization has far-reaching implications for understanding the future development of realism, quantum mechanics, and quantum technology.

There are many ways to describe and explain nothingness. For example, a set of mathematical expressions called Bell's and CHSH's inequalities show nonexpansion through inequality violation. Meanwhile, Lucien Hardy provided an alternative explanation for quantum delocalization in 1992 when he developed Hardy's paradox.

Suppose there are three quantities A, B, C, A is greater than B and B is greater than C. As a fundamental mathematical property of transitivity (or local hidden variable theories in physics), this is intuitively greater than C

However, Hardy points out that C can still be larger than A. In other words, it is non-locality.

You can evaluate it with "rock-paper-scissors". Obviously rock can meet scissors and rock can meet paper but not rock. Mixing does not fit into any mathematical concept, therefore it is paradoxical.

A recent study published in the journal Physical Review A provides some interesting information about Hardy's site. Co-author of the study, Dr. Lee Bin Ho of the Frontier Research Institute for Interdisciplinary Sciences (FRIS) at Tohoku University.

The lieutenant said: “Hardy delocalization has important implications for understanding fundamental quantum mechanics and is the key to enhancing the possibility of delocalization. We used computers and quantum techniques to improve the probability of measuring the nonlocal Hardy state."

Lee and colleagues did this by proposing a theoretical framework for finding nonlocal maximum likelihood. They confirmed this with a theoretical model and quantum simulations.

Although previous studies have shown the opposite, they found that the probability of non-localization increases with the number of articles. This shows that quantum effects persist on large scales, further challenging the theories of physics.

According to Lu, these results have important implications for understanding quantum mechanics and its potential applications in communications. "Understanding the non-existence of quanta will lead to some very exciting technological developments, such as the secure transfer of data over non-local resources using quantum communication."

Reaction and diffusion systems Dr. Saikat Mukherjee

“Start keeping regular records of your parents, elders and loved ones,” says the doctor. Prateik Desai, founder of several AI platforms, in a Twitter thread Sunday. “With enough transcription data, new speech synthesis and video models, there is a 100% chance they will stay with you forever after leaving the physical body. It should also be possible later this year."

Experts who spoke to Fox News Digital had mixed reactions to Dr. Desai, with some questioning the moral and philosophical factors involved in creating the tool, while others downplayed the development's potential.

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Software engineer and author Drew Romero agrees with Mendoza's point of view, saying that making digital copies of people who have died has serious ethical, legal, and social implications to consider, such as privacy, consent, authenticity, and cultural norms.

He added that Desai's claims were "highly speculative" and "not supported by current technology and research."

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"Literally, if I die — and I collect this data — people can come or my child, they can come and talk to my avatar, my movements, my voice," Sychev told VICE. “You will meet someone. And maybe, for the first 10 minutes of conversation with this person, you won't know that it's actually HE. That's the point."

Meanwhile, South Korean AI video production company DeepBrain has created a program called Memory, a virtual human service that uses AI to recreate deceased clients' family members, "simulating every aspect of them, from their physique to their voice." .

In 2019, California-based company HereAfter AI created the first app that lets family and friends save "memories" of your life and interact with a virtual version of you.

The emerging business idea has been compared to an episode of the British science fiction anthology series Black Mirror entitled "Be Right Back". The episode tells the story of Martha, a young Irish woman whose boyfriend is killed in a car accident. To deal with her grief, Martha reluctantly contacts a company that allows her to communicate with an artificial intelligence imitating her lost love.

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Politicians, lawmakers and actors have repeatedly raised concerns about deep spoofing technology, a process in which deep learning artificial intelligence is used to alter, substitute or mimic a person's face or voice for distribution in digital media.

In 2022, the Department of Homeland Security (DHS) released documents highlighting "evolving deep identity threats" to national security, including examples of fake videos featuring former President Obama, Meta's Mark Zuckerberg, podcaster Joe Rogan, actor Tom Cruise, and many more D. . . . Many of these videos have been viewed millions of times each.

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Next-generation quantum devices require highly error-prone configurations. In response to this need, AQT researchers at Berkeley Lab's state-of-the-art collaborative research laboratory have developed a new quantum processor design based on "Fluxonium" qubits. Fluxonium qubits can outperform commonly used superconducting qubits and open a promising path to universal fault-tolerant quantum computers.

In collaboration with researchers from the University of California, Berkeley, and Yale, the AQT team is pioneering systematic theoretical studies on the design of high-performance fluxonium qubits and providing practical recommendations for adapting and building state-of-the-art hardware. Realizing the potential of quantum computing. . The results were published in the journal PRX Quantum .

At the forefront of superconductor processing

Superconducting quantum processors consist of multiple qubits with different transition frequencies that enable precise control of individual qubits and their interactions. Transmon qubits, one of the most widely used in the superconducting processor industry, typically have low anharmonicity. Anharmonicity is the difference between the respective transition frequencies in the qubits. Low anharmonicity contributes to the spectral density (when the qubit frequencies are correlated with each other), which makes the processor difficult to control as the qubit frequencies are tightly controlled.

Conversely, high anharmonicity allows researchers to better control the qubit, because there is less overlap between the frequencies that drive the qubit and the frequencies that drive the qubit to higher energy levels. Fluxonium qubits have intrinsic advantages for complex superconducting processors such as B. high anharmonicity, long coherence time, and easy control.

Building on AQT's strong R&D history in superconducting circuits, the team behind the Fluxonium-based architecture focuses on the scalability and adaptability of core processor components, a number of parameters that allow researchers to improve the runtime and reliability of quantum-enhancer circuits. . Some of these tweaks make the system easier to use. For example, researchers have proposed to control fluxonium qubits at low frequency (1 GHz) by using microwaves directly generated by generators of random electric currents. This practical approach allows researchers to dynamically design processors and control multiple qubits.

Flexible Fluxonium Qubit Approach for Large Devices

Long Bi Nguyen is a project scientist at AQT and lead author of the publication. Nguyen began researching alternative superconducting qubits as a graduate student at the University of Maryland in collaboration with Professor Vladimir Manucharian. Manucharyan introduced fluxonium qubits to the field a decade ago, and in 2019, Nguyen demonstrated the possibility of longer entanglement using fluxonium rings. The Fluxonium circuit consists of three components: a capacitor, a Josephson junction, and a superinductor, which helps to reject magnetic flux noise, a typical source of unwanted interference that affects overpowered qubits and causes imbalance.

"I've always wanted to learn new physics and I focused on Fluxonium because it seemed like a better alternative to transmons at the time. It had three circuit components that I could play with to get the spectrum I wanted. He could design it. Avoid 'inconsistencies due to material defects.'" And I recently realized that adding fluxonium could be more cost-effective because the interactions between individual qubits can be demonstrated with high precision,” explains Nguyen.

To evaluate and verify the performance of the proposed Fluxonium design, the AQT team collaborated with the paper's researchers to simulate two types of programmable quantum logic gates: NIE (cross-resonance controlled NIE) and AC-controlled differential. Stark-Z (CZ). The high fidelity simulation of the gates in the proposed qubit measurement range validates the team's hopes for the proposed design.

"Using standard methods and practices for using variable-frequency logic gates, we present a potential way to build fluxonium processors. We hope for further research and development in fluxonium and superconducting qubit options for next-generation devices for quantum information processing." Nguyen said.

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Superconducting inks that can be printed on surfaces in single-molecule layers could be useful for building quantum computer circuits. Tungsten disulfide inks are more stable than other superconducting inks and easier to manufacture, which bodes well for future applications.

When a material is superconducting, electricity can flow through it without resistance, making it a very efficient way to transfer energy. Superconducting materials also have unique magnetic properties, but they are usually difficult to fabricate and break down when exposed to air or at temperatures well below absolute zero.

Princeton University's Xiaoyu Song and Leslie Shoop and their colleagues produced tungsten disulfide ink using a process called chemical exfoliation. They started with a material made of alternating layers of tungsten and potassium disulfide. “Imagine you have a pancake cake. you have all these pancakes stacked on top of each other with custard in between. Tungsten disulfide is the pancake and potassium is the filler,” Song said. When the multilayer components are placed in dilute sulfuric acid, it is similar to immersing a cookie in water; the potassium dissolves, leaving only a thin layer of tungsten disulfide.

When the acid and traces of potassium washed away, the researchers were left with a thin layer of tungsten suspended in the water. This solution can be printed on a glass, plastic, or silicon substrate by creating a one-molecule-thick layer of tungsten disulfide.

Printed images are stable for at least 30 days under ambient conditions without enclosure or protective coating. When cooled below 7.3 Kelvin (-266 °C), the ink becomes superconducting even without a cap. "You can take it with you or let it sit at room temperature and then just refrigerate it," says Shoup. “But that requires liquid helium. unfortunately, this is not possible in a home refrigerator."

This process is much simpler than that used for other superconducting inks, which require a protective coating to prevent degradation over time. This could facilitate industrial production of these inks, although their temperature requirements hinder some potential applications. "It could still be useful for things that are already cooling, like a quantum computer or an MRI machine, where you've already cooled your system significantly," Shoup said. In the future, the researchers hope that this method can be used to produce superconducting inks at higher temperatures.

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I am disgusted at how bad the customer service is to help with repairs, I have been an HP customer for over 20 years, bought over 400 computers/laptops and have never had such bad customer service in my life. I started an issue 4 months ago and have received nothing but emails to troubleshoot why my computer is overheating.