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Genshin Impact’s Alhaitham brings both brains and brawn! Here’s how you build him



Alhaitham is finally making his debut in the first half of Genshin Impact version 3.4! Don’t be fooled by him calling himself a Feeble Scholar, this 5-star Dendro sword user brings both brains and brawns to the table. Here’s everything you need to know about him. (Photos: HoYoverse)

With the release of Genshin Impact version 3.4, Alhaitham is finally here!

After being an integral part in our quest to save the Dendro Archon Lesser Lord Kusanali, this 5-star Dendro sword user now brings both brains and brawn to the Traveler’s party.

And while Alhaitham called himself a ‘feeble scholar’, don’t be fooled by his words. There’s a vicious strength hiding behind Alhaitham’s rather quiet and studious demeanour. Here’s everything you need to know about Alhaitham!

Analyse, Hypothesise, Plan, Decimate

Alhaitham boasts a kit that focuses on dealing fast Dendro-infused attacks, making him a Main DPS that requires him to take the majority of field time for your party.


And while he is similar to other 5-stars, especially Keqing, we actually headcanon-ed that he learned their techniques through the variety of Knowledge Capsules he had come across as the Akademiya Scribe and made them his own.

Alhaitham’s skill, Universality: An Elaboration of Form, is where the brunt of his damage output comes from. It allows him to enter an Aiming Mode to rush on enemies head-on, teleporting to the target location and dealing Dendro DMG to any nearby enemies, similar to Keqing’s skill.

During this time, Alhaitham will generate Chisel-Light Mirrors, which will infuse his Normal, Charged, and Plunging Attacks with Dendro. When his infused attacks hit opponents, the Chisel-Light Mirrors will unleash a coordinated Projection Attack that deals area-of-effect Dendro DMG based on the number of Chisel-Light Mirrors existing on field. A maximum of three Chisel-Light Mirrors can exist during the duration of his skill.

Switching out Alhaitham prematurely will destroy these Mirrors and end his skill duration, so it’s ideal to keep him on-field at all times when you have deployed his skill.

His burst, Particular Field: Fetters of Phenomena, creates a Particular Binding Field which deals multiple instances of area-of-effect Dendro DMG.

When you have Chisel-Light Mirrors during the duration of the burst, all the Mirrors will be consumed and increase the number of DMG instances dealt. After the burst ends, Alhaitham will then regenerate the number of Chisel-Light Mirrors consumed.

Alhaitham’s A1 Passive, Four-Casual Correction, allows his Charged or Plunging Attacks to generate one Chisel-Light Mirror when hitting opponents. This effect can be triggered once every 12 seconds.

Meanwhile, his A4 Passive, Mysteries Laid Bare, will increase the damage of Projection Attacks from his Chisel-Light Mirrors as well as his burst by 0.1% of his Elemental Mastery. You can gain a 100% DMG bonus in this way.

Due to his A4 Passive, Alhaitham scales with both ATK% and Elemental Mastery, and maximizing his damage output will require you to maintain a good balance of these two stats alongside your Crit ratios.

Your focus in ascending Alhaitham’s talents should be his Normal Attacks, then Skill, and lastly his Burst.

Sometimes, group studies are necessary (Alhaitham’s best teams)

Alhaitham may like to work alone, but he shines best in a team that pushes him towards his full capability. With his Dendro alignment, Alhaitham is a formidable DPS that takes advantage of the myriad of Dendro elemental reactions that were introduced in the game back in version 3.0.

Here are some teams you can try!

Quick-Bloom: Alhaitham, Electro Character, Hydro Character, Flexible spot

This lineup utilises the Quicken-into-Spread and Bloom-into-Hyperbloom reactions. Alhaitham will take advantage of the increased Dendro DMG from triggering Spread while creating Dendro Cores with Bloom, and subsequently detonating them early to deal homing Dendro DMG with the help of an off-field Electro support like Fischl, Yae Miko, or Raiden Shogun with an Elemental Mastery build.

This team can get on the technical side, so it’s ideal to have a healer like Kokomi for Hydro, Kuki Shinobu for Electro, and Yaoyao for Dendro. The flexible spot in this team can be taken by Dendro supports like Collei, Nahida, or Dendro Traveller.

Spread: Alhaitham, Nahida/Dendro Traveller/Collei/Yaoyao, Kuki Shinobu/Fischl/Beidou/Yae Miko/Dori

Crafted to focus wholly on Alhaitham’s enhanced Dendro DMG through Spread, this team will consist of a Dendro Support, and ideally two Electro characters that can act as a healer and off-field Electro applicator.

However, if you want to be assured of tanking through enemies, a shielder like Zhongli, who can also shred resistances, is welcome in this setup. A Normal Attack buffer like Yun Jin can also be a viable option.

Bloom: Alhaitham, Nilou, Kokomi/Barbara, Nahida/Dendro Traveler/Collei/Yaoyao

This team will take advantage of Nilou’s Bountiful Cores, that being Dendro Cores that explode instantly and with DMG that scales off of Nilou’s max HP. With Alhaitham acting as the Main DPS, Nilou’s off-field version of her skill will be the trigger to create the cores.

Kokomi or Barbara will act as healers, as well as triggering Hydro Resonance to further increase Nilou’s HP, while Dendro Traveler, Nahida, Collei, or Yaoyao will act as secondary off-field Dendro supports.

Burgeon: Alhaitham, Thoma, Xingqiu/Yelan/Kokomi/Barbara, Nahida/Dendro Traveller/Collei/Yaoyao

Taking advantage of the Burgeon reaction and its area-of-effect Dendro DMG, Alhaitham will act as Main DPS while Thoma’s burst will generate Pyro to trigger the reaction. Hydro characters like Xingqiu, Yelan, Kokomi, or Barbara will create the Dendro Cores. Nahida, Dendro Traveller, Collei, or Yaoyao will act as secondary off-field Dendro appplicators.

The Pen is mightier than the Sword, but not in this case (Alhaitham’s best gear)

When it comes to gear, the best option for Alhaitham is obviously his signature weapon, Light of Foliar Incision, as it is tailor-made for his kit.

It boasts the biggest Crit DMG substat in the game, maxing out at 88% to make up for the low base ATK. The passive also gives you a 4% Crit Rate increase, while increasing the damage of your Normal Attacks and Elemental Skill by 120% of your Elemental Mastery.

But if you’re not too keen on pulling in the weapon banner, here are some alternatives:

Primordial Jade Cutter: Ascends with Crit Rate, which is a welcome addition. The HP increase passive won’t benefit you, but the ATK bonus scaling off of 1.2% of Max HP means you can focus on getting more Elemental Mastery than ATK in your artifacts.

Mistsplitter Reforged: Ascends with Crit DMG, gives additional Elemental DMG bonus. Works well with Alhaitham as he can trigger the passive fairly quickly with his skill and burst.

Haran Geppaku Futsu: Ascends with Crit Rate, gives additional Elemental DMG bonus, and further Normal ATK DMG bonus when your teammates unleash skills.

For 4-star weapons, you can go for:

  • Xiphos’ Moonlight (Gacha)
  • The Black Sword (Battle Pass)
  • Toukabou Shigure (event-only)
  • Iron Sting (craftable)
  • Amenoma Kageuchi (craftable)
  • Festering Desire (event-only)

And for the true free-to-play experience, the 3-star weapon Harbinger of Dawn is also a good option.

For Artifacts, the best set Alhaitham can use is Gilded Dreams, which will increase both his Elemental Mastery and ATK with its 4-piece set bonus, and necessary to get bigger DMG numbers. You can also equip him with Deepwood Memories, but it’s more ideal to have a Dendro support in his team to have it.

The main stats for your artifacts should be:

Substats to go for should be: Crit DMG or Crit Rate, Elemental Mastery, ATK and ATK%, then Energy Recharge.

Alhaitham is featured as the new 5-star character for Genshin Impact version 3.4 alongside a rerun for Xiao in the version’s first half. The second half will then feature reruns for both Hu Tao and Yelan.

If you’re still torn between pulling for Alhaitham or Xiao, or thinking of waiting for Hu Tao and Yelan instead, we’ve got you covered.

After version 3.4 comes version 3.5, which will feature the debuts of Dehya and Mika. Genshin Impact version 3.5 is expected to be released in late February.

Yan Ku is a full-time dog parent, part-time (gacha) gamer, and part-time writer.



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A Quick Guide to Better CMM Maintenance




A coordinate-measuring machine, also known as a CMM, is a specialized piece of equipment common in high-precision manufacturing. It uses coordinate technology to measure and replicate the dimensions of particular objects.

CMMs are a lot more accurate than regular measurement gauges. This characteristic makes them the equipment of choice for quality assurance in certain industries, like aerospace, defense, and medical manufacturing.

Despite being a powerful piece of equipment and the most versatile measuring tool in the metrology industry, CMMs can also be quite delicate. They require the right environment and proper maintenance practices to maintain accuracy and reliability.

The Importance of Proper CMM Maintenance

It’s essential to clean and inspect each part of your machine to ensure it stays efficient and accurate. Preventative maintenance ensures that your CMM remains accurate and performs at its best. It also improves your machine’s longevity.


Without proper CMM maintenance, you could risk damaging your CMM. Repairs would involve operational delays and additional costs.

CMM Preventative Maintenance Tips

Preventative maintenance practices are ones your team could do by yourselves. It’s best to schedule regular maintenance checks for your CMM daily, weekly, monthly, or quarterly. These checks can alert you immediately to possible problems with your CMM.

Remove dust and dirt regularly

Clean and well-maintained air bearings ensure your CMM works as it should. These frictionless and stable bearings help ensure accuracy and efficiency. Dust and dirt can clog your machine’s air bearings, affecting its overall performance.

Aside from your machine’s air bearings, dust could also get into other surfaces and crevices. These tiny particles could affect your machine’s accuracy.

Handle Stylus Tips Properly

The stylus is the tip that makes contact with the object you want to measure with your CMM. Despite this significant role, the stylus can be fragile and require careful handling. Too much force could cause it to bend or break.

Clean your stylus with a cleaning agent and a lint-free cloth. Make sure to remove any residue from workplace materials.

Ensure Good Air Quality

Most CMMs use air bearings, and good air quality is essential to keep them running smoothly. Various air quality issues could affect machine performance and even burn out machine motors.

For air quality maintenance, ask and address the following questions:

  • Do the lines have condensation, oil, or other contaminants?
  • Is the airflow constant?
  • Are you using the proper pressure?

When To Call a Professional

Most preventative maintenance practices are simple enough to be performed internally. However, some issues require professional attention. You can also conduct regular professional maintenance checks to ensure you don’t miss anything.

Below are some procedures that require professional assistance. Many CMM suppliers also offer maintenance services alongside their machinery.

Conducting CMM Training

CMMs are highly specialized pieces of equipment. To handle them properly, your staff needs professional training.

Training courses allow you to get trained by CMM experts on the tools and knowledge necessary within your industry. Regular training sessions also help keep you updated on industry trends and standards.

Sensor Malfunctions

CMM sensors are critical to your machine’s speed and accuracy. They should be professionally inspected and calibrated annually.

Routine sensor maintenance can significantly improve the efficiency and accuracy of your machine. CMM sensors include the following:

  • Scanning probe
  • Single point laser
  • Line laser
  • Electronic touch trigger probe
  • Video camera

Faulty Bearings

Neglected air bearings could cause them to falter in their accuracy and stability. Properly maintained air bearings ensure a smooth, stable, and accurate measurement process.

A professional metrology company can thoroughly inspect your air bearings to prevent further machine damage.

A CMM is a significant investment for any business. Good maintenance practices help your machine last and perform at its best, thus making the most out of this investment.


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Nintendo’s discounted Switch game vouchers are back



Nintendo’s Switch Online service has become a better deal over time, offering more perks than just the ability to play games online. On top of getting access to SNES and NES classics, and cloud save backups (for most games, save a couple dozen), Nintendo announced an even bigger perk yesterday: discounted game vouchers.

All subscribers can buy a two-pack of these vouchers for $99.98, and a huge range of first-party (in other words, typically discount-averse) Nintendo games are looped in. I encourage you to check out the full list, but some highlights include the brand-new Fire Emblem Engage, Kirby’s Return to Dream Land Deluxe, Bayonetta Origins: Cereza and the Lost Demon, Metroid Dread, Splatoon 3, The Legend of Zelda: Breath of the Wild, and Pokémon Scarlet and Violet. Important note: you both have to be a subscriber to buy and use these vouchers.

It’s great that this list is more expansive than Nintendo’s first swing at this deal in 2019. But this perk could actually turn Switch Online into a must-have service because it allows you to pre-purchase up to four sets of vouchers (totaling eight games), and keep them for 12 months from the date of purchase. With $20 in savings with each pair of vouchers, buying four bundles will save you up to $80, assuming that each title normally costs $59.99. If you buy a lot of games, this is a smart way to save a little bit of money on every forthcoming purchase.

I know what you might be thinking: “Can I use one on The Legend of Zelda: Tears of the Kingdom?” Nintendo has not currently listed the deliriously anticipated sequel to Breath of the Wild, which is set to release on May 12th, 2023. Polygon has reached out to Nintendo to see if it’ll eventually become eligible, but did not hear back in time for publication.


You can get a free seven-day trial for Switch Online here, and you can easily subscribe to the service directly from the Switch’s eShop (it costs $3.99 per month, $7.99 for three months, or $19.99 per year). However, you can purchase (or gift) a one-year subscription with a digital code via Best Buy for $19.99. With a family subscription that costs $34.99 per year, up to eight Switch accounts can reap the perks of Switch Online.

For players who want all the perks, access to Goldeneye 007 and other N64 and Sega Genesis games, and complimentary DLC for some Switch games like Mario Kart 8 Deluxe, you’ll need Nintendo’s Switch Online plus the Expansion Pack tier, which costs $49.99 per year for one account, or $79.99 per year for a family subscription.


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Canadian discovery could help batteries last longer



A chance discovery in a Canadian laboratory could help extend the life of laptop, phone and electric car batteries.

According to scientists from Dalhousie University in Halifax, common adhesive tape in batteries may be the reason many devices lose some of their power while off or not being used, which is a phenomenon known as self-discharge.

“In our laboratory we do many highly complex experiments to improve batteries, but this time we discovered a very simple thing,” Michael Metzger, an assistant professor in Dalhousie University’s physics and atmospheric science department, said in a news release. “In commercial battery cells there is tape—like Scotch tape—that holds the electrodes together and there is a chemical decomposition of this tape, which creates a molecule that leads to the self-discharge.”

The solution is simple, too, Metzger says: replace the polyethylene terephthalate, or PET, plastic tape commonly used inside batteries with something more durable and stable.


“It’s a commercially relevant discovery,” Metzger said. “It’s a small thing but it can definitely help improve battery cells.”

Metzger and his team have been trying to understand why lithium-ion battery cells in inactive devices tend to lose some of their power and self-discharge, something that has long frustrated consumers and manufacturers alike.

“Every manufacturer of lithium-ion cells in the world wants to make self-discharge as small as possible,” Metzger told in a joint statement with graduate student Anu Adamson. “In every battery there is a small rate of self-discharge that slowly drains the battery. This is very inconvenient for users and a big headache for industry.”

The electrodes that power batteries are separated by an electrolyte solution that is usually a form of lithium. After exposing several battery cells to different temperatures, researchers were surprised to see that electrolyte solution had turned bright red when it normally should be clear, which was something they had never encountered. The discovery was made by Adamson and two other students.

Chemical analysis of the red electrolyte solution revealed that at higher temperatures, a new molecule had been created inside the battery through the decomposition of common PET adhesive tape, which is often used to hold components together inside batteries. Strong and lightweight, PET is also frequently used for plastic packaging, drink bottles, clothing fibres and more.

Researchers realized that the red molecule, dimethyl terephthalate, was acting as a redox shuttle, meaning that it can transport electrons between a battery’s positive and negative electrodes, creating self-discharge and depleting power even when a battery is not in use. Ideally, the shuttling of electrons within a battery should only happen when a device is on.

“It’s a very simple thing—it is in every plastic bottle and no one would have thought that this has such a huge impact on how the lithium-ion cells degrade,” Metzger said in the news release. “It’s something we never expected because no one looks at these inactive components, these tapes and plastic foils in the battery cell, but it really needs to be considered if you want to limit side-reactions in the battery cell.”

The findings are outlined in a pair of studies published on Jan. 20 and Jan. 23 in the peer-reviewed Journal of The Electrochemical Society. The researchers are now testing PET tape substitutes.

“Since the PET in the tape is the culprit that creates the redox shuttle, we need to replace it with a polymer that is more stable and does not decompose in the harsh chemistry of a lithium-ion battery,” Metzger and Adamson told “So far, the results look very promising, and we plan to publish a new research paper on improved polymers for lithium-ion battery tapes soon.”

According to the researchers, their work has been attracting interest from “some of the world’s largest computer hardware companies and electric vehicle manufacturers,” which are eager to reduce self-discharge and improve battery performance.

“We visited some of these companies and they are planning to implement more stable polymers in their battery cells,” Metzger said.

In the release, Metzger noted: “One of the engineers said, ‘I heard you guys found out something is wrong with PET tape.’ So, I explained to him that it’s causing this self-discharge and asked him, ‘What are you using in your cells?’ He said, ‘PET tape.'”


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