Monero Research Lab meeting scheduled for 9 October 2024 1700 UTC
The next Monero Research Lab1 meeting is scheduled to take place on Wednesday, October 9th 2024 at 17:00 UTC on IRC-Libera/Matrix2 in the #monero-research-lab channels.
- Updates. What is everyone working on?
- Stress testing monerod3
- Research Pre-Seraphis Full-Chain Membership Proofs4. Reviews for Carrot.5
- 10 block lock discussion6
This meet … ⌘ Read more
Cez Nadlak je…2024
V Rumunsku zachovávajú slovenskú identitu a tradície aj festivalom Cez Nadlak je… Túto súťažnú prehliadku v speve slovenských ľudových piesní v tomto roku organizovali v dňoch 27. až 29. septembra. Na 24. ročníku festivalu účinkovalo spolu 31 spevákov zo Srbska a z Rumunska. Dvaja účastníci z Maďarska súťaže sa nezúčastnili zo zdravotných dôvodov. V kategórii 6 – 12 rokov súťažilo 14 spevákov, v kategórii 13 – 18 rokov súťažilo 12 spevákov a v kategórii nad 18 rokov iba 5 sp … ⌘ Read more
dance! new world chaos 5 / chill… bleak future counterweapon 3 | https://nilfm.cc/mixes.html
Raspberry Pi Launches $70 AI Camera with 12MP Sensor and Broad Compatibility
Raspberry Pi has launched a new low-cost AI Camera, bringing powerful AI capabilities to all Raspberry Pi models. Unlike the AI Kit, which is limited to the Raspberry Pi 5, the AI Camera is more versatile and compatible with a wider range of devices. The core of the Raspberry Pi AI Camera is the […] ⌘ Read more
Gajim: Gajim 1.9.5
This release comes with many improvements for Gajim’s Microsoft Store version. Translations are now available for all distributions again. Thank you for all your contributions!
Gajim now detects if you installed it from the Microsoft Store. This allows Gajim to delegate updates to the Store rather than handling updates by itself. Detecting the install method also allowed us to apply a fix which prevented native notifications to work in Windows. Last but not least, viewing r … ⌘ Read more
HiFiBerry DAC8x and Amp4 Pro for High-Quality Multi-Channel and Stereo Sound
The HiFiBerry DAC8x and HiFiBerry Amp4 Pro are two significant upgrades for enhancing audio capabilities on the Raspberry Pi 5. These devices expand the audio options for users seeking higher-quality output and greater flexibility in audio configurations, offering solutions for both multi-channel audio and powerful stereo amplification. The HiFiBerry DAC8x addresses a long-standing limitation of […] ⌘ Read more
NanoPi M6: High-Performance SBC with Gigabit Ethernet and M.2 SSD Expansion
The NanoPi M6 is a compact and open-source single-board computer (SBC) designed for high-performance applications, powered by the RK3588S System-on-Chip. Key features include an M.2 M-Key PCIe slot for SSD storage and an optional metal case with an integrated 3.5-inch LCD. The board is built around the Rockchip RK3588S SoC, which combines quad-core ARM Cortex-A76 […] ⌘ Read more
LILYGO T-Embed CC1101: Enabling Sub-GHz and NFC/RFID Communication
LILYGO launched the T-Embed CC1101, built around the ESP32-S3 Dual-core LX7. It supports Wi-Fi, BLE 5, and Sub-GHz wireless communication, targeting remote and low-power IoT projects. The ESP32-S3 microcontroller is paired with 16MB of Flash memory and 8MB of PSRAM. The CC1101 chip operates across frequency bands of 300-348 MHz, 387-464 MHz, and 779-928 MHz, […] ⌘ Read more
Hiring: Senior Backend Golang | Remote (Brazil) | A new challenge awaits!
What are we looking for?
- 5+ years of experience in software engineering.
- Proven experience with Golang and building production-ready services.
- Strong knowledge of cloud technologies, specifically AWS.
- Experience with SQL databases such as Postgres, DynamoDB, or MongoDB.
- Expertise in microservices architecture and design.
- Proficiency with containerization tools such as Docker and orchestration tools like Kubernetes.
- S … ⌘ Read more
There’s a simple reason all the current hashes end in a or q: the hash is 256 bits, the base32 encoding chops that into groups of 5 bits, and 256 isn’t divisible by 5. The last character of the base32 encoding just has that left-over single bit (256 mod 5 = 1).
So I agree with #3 below, but do you have a source for #1, #2 or #4? I would expect any lack of variability in any part of a hash function’s output would make it more vulnerable to attacks, so designers of hash functions would want to make the whole output vary as much as possible.
Other than the divisible-by-5 thing, my current intuition is it doesn’t matter what part you take.
Hash Structure: Hashes are typically designed so that their outputs have specific statistical properties. The first few characters often have more entropy or variability, meaning they are less likely to have patterns. The last characters may not maintain this randomness, especially if the encoding method has a tendency to produce less varied endings.
Collision Resistance: When using hashes, the goal is to minimize the risk of collisions (different inputs producing the same output). By using the first few characters, you leverage the full distribution of the hash. The last characters may not distribute in the same way, potentially increasing the likelihood of collisions.
Encoding Characteristics: Base32 encoding has a specific structure and padding that might influence the last characters more than the first. If the data being hashed is similar, the last characters may be more similar across different hashes.
Use Cases: In many applications (like generating unique identifiers), the beginning of the hash is often the most informative and varied. Relying on the end might reduce the uniqueness of generated identifiers, especially if a prefix has a specific context or meaning.
@movq@www.uninformativ.de I didn’t run the command as you recommended, but, I wiped things once more, and ran jenny -f, and this time got:
david@arrakis:~$ jenny -f
Fetching archived feed https://anthony.buc.ci/user/abucci/twtxt.txt/1 (configured as abucci, https://anthony.buc.ci/user/abucci/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2024-04.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://darch.dk/twtxt-archive.txt (configured as soren, https://darch.dk/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2024-04-21_6v47cua.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://twtxt.net/user/prologic/twtxt.txt/1 (configured as prologic, https://twtxt.net/user/prologic/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2024-03.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2022-12-21_2us6qbq.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://twtxt.net/user/prologic/twtxt.txt/2 (configured as prologic, https://twtxt.net/user/prologic/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2024-02.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2022-01-14_ew5gzca.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://twtxt.net/user/prologic/twtxt.txt/3 (configured as prologic, https://twtxt.net/user/prologic/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2024-01.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-12-23_f6y65bq.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://twtxt.net/user/prologic/twtxt.txt/4 (configured as prologic, https://twtxt.net/user/prologic/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-12.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-12-04_e4x7yba.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://twtxt.net/user/prologic/twtxt.txt/5 (configured as prologic, https://twtxt.net/user/prologic/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-11.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-11-18_42tjxba.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://twtxt.net/user/prologic/twtxt.txt/6 (configured as prologic, https://twtxt.net/user/prologic/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-10.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-11-08_i2wnvaa.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-09.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-10-23_kvwn5oa.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-08.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-10-11_mljudaa.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-07.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-09-22_5mkqwua.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-06.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-07-27_xcnzmlq.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-05.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-06-16_mtedqya.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-04.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-04-29_z7lvzja.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-03.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-03-19_xjabvhq.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-02.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-02-24_te4a6oa.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2023-01.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2021-01-26_qxgigma.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-12.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://www.uninformativ.de/twtxt-old_2020-12-13_igfnala.txt (configured as movq, https://www.uninformativ.de/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-11.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-10.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-09.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-08.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-07.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-06.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-05.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-04.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-03.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-02.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2022-01.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-12.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-11.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-10.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-09.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-08.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-07.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-06.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-05.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-04.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-03.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-02.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2021-01.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Fetching archived feed https://lyse.isobeef.org/twtxt-2020-12.txt (configured as lyse, https://lyse.isobeef.org/twtxt.txt)
Notice that @prologic@twtxt.net’s /6 is there. I found the twtxt then. Kind of odd it didn’t show before.
GENESYSM-ADN6: A 3.5″ SubCompact System with Triple 2.5GbE LAN Ports
GENESYSM-ADN6: A 3.5” SubCompact System with Triple 2.5GbE LAN Ports ⌘ Read more
Milk-V DuoModule Eval Board with RISC-V Core, 8051 Core, and Linux Support
The Milk-V DuoModule 01 Evaluation Board offers a versatile platform for evaluating the Duo Module 01, featuring Wi-Fi 6, Bluetooth 5.4, and eMMC storage. It enables developers and makers to prototype solutions using the SG2000 SoC, with open-source documentation to streamline development. Like the Milk-V Duo S and Oz64, this board features the SG2000 SoC, […] ⌘ Read more
Pinellas County - Long Run: 11.04 miles, 00:11:22 average pace, 02:05:22 duration
body was a bit worn out today. switched it up to walk-run after about 5 miles because i have a daddy-daughter dance this afternoon and did not want to be too stiff. met another runner who actually only lives about a mile or less from me. maybe i will try to meet with him after my business trip next week.
#running
MSI’s MS-CF17: An Ultra-Low-Power 3.5″ SBC with Intel Raptor Lake-P Processors
The MS-CF17 from MSI is an advanced single-board computer that combines high performance with a compact, fanless, ultra-low-power design. Featuring Intel’s latest 13th Gen Raptor Lake-P processors, the board is also available in an industrial-grade variant, making it suitable for demanding applications. This SBC is equipped with Intel Mobile 13th Gen Raptor Lake-P U Series […] ⌘ Read more
5.4.284: longterm
Version:5.4.284 (longterm)Released:2024-09-12Source:linux-5.4.284.tar.xzPGP Signature:linux-5.4.284.tar.signPatch:full ( incremental)ChangeLog:ChangeLog-5.4.284 ⌘ Read more
Pinellas County - Hills: 5.25 miles, 00:10:03 average pace, 00:52:48 duration
some hill (or overpass here in florida) workouts.
#running
Asus X7433RE-IM-A is a 3.5″ Single Board Computer with Intel Atom X7433RE Processor
The X7433RE-IM-A is a 3.5” industrial single board computer designed for industrial applications, featuring the Intel Amston Lake System-on-Chip. It integrates Intel Deep Learning Boost and Advanced Vector Extensions 2 to enhance AI inference and accelerate workloads at the edge, specifically targeting IoT applications. This SBC is available with the x7433RE processor, offering … ⌘ Read more
Pinellas County Running: 5.01 miles, 00:10:15 average pace, 00:51:20 duration
quick run around the park. boy was it hot!
#running
【长文】24.8~京都大学数据科学/东京大学情报理工CS/东京大学复杂理工~合格经验
一、背景笔者参加并合格了2024年8月京都大学数据科学、东京大学情报理工cs以及东京大学新领域复杂理工的夏入(2025入学)。
我的背景比较不具备参考价值,有点奇怪。
学校:非科班并且工作后辞职备考。
本科GPA:3.5/4
英语:托福97
日语:略强于50音。未提交任何日语成绩。
以及先套个甲,修考非常的小马过河,很难说别人的经验就完全适应于你;以及修考的很多流程确实是黑箱,本文中的内容很多都是推测。所以本文内容仅供参考,不构成任何投资建议,啊不,决策建议。
本文参考了很多大佬的经验贴,在这里着重推荐以下几个:
知乎上京大DS夏入的经验贴似乎只有这一个,特别感谢这个帖子让我少走了很多弯路。以及同样推荐帖子中提到的霓虹爷写的网站,简直是京大知能修考必备。
[一滴:2022年度| … ⌘ Read more
Minisforum UM760 Slim Offers Dual M.2 PCIe 4.0 Slots and DDR5 Memory Support
The Minisforum UM760 Slim is a compact mini PC designed for a variety of computing needs. It features a silent cooling system and is built around the AMD Ryzen 5 7640HS processor, paired with an AMD Radeon 760M GPU, providing a balance of performance and power efficiency. As mentioned above, the Minisforum UM760 Slim is […] ⌘ Read more
@New_scientist@feeds.twtxt.net It’s great that US regulators have approved launching 40,000 satellites with a 5-year lifespan before we had this kind of information about what’s likely to happen when they start falling out of orbit at a rate of several per hour.
Erlang Solutions: 5 Ways MongooseIM Provides Scalable and Future-Proof Messaging
CTOs with instant messaging requirements are facing a challenge. Whether they are looking to improve an existing instant messaging system or implement one for the first time, they need a messaging solution that can scale to meet growing demands. It must also integrate with existing systems and remain future-proof against technological changes. It sounds like a lot to ask for, but traditi … ⌘ Read more
A guide to modern Kubernetes network policies
Member post originally published on Bouyant’s blog by Scott Rigby In the world of Kubernetes, network policies are essential for controlling traffic within your cluster. But what are they really? And why, when and how should you implement… ⌘ Read more
QBiP-N97A: 3.5” SubCompact Embedded Motherboard with Intel Processor N97, DDR5 Memory, and SATA 6Gb/s Support
ICP Deutschland recently showcased the QBiP-N97A, a 3.5″ SubCompact Embedded Motherboard designed for various industrial applications, including automation systems and point-of-sale terminals. This motherboard features DDR5 memory support, dual 2.5GbE LAN ports, and SATA 6Gb/s support for storage. The QBiP-N97A is powered by the I … ⌘ Read more
Pinellas County - Long Run: 5.36 miles, 00:10:30 average pace, 00:56:16 duration
missed my alarm. it was a late night and did not really want to get up. my chest was tight most of the run on top of the exhaustion, and the heat just zapped any motivation out of me. oh well, taper week.
#running
Milk-V RuyiBook Laptop Developed with XiangShan Nanhu RISC-V-based CPU
Milk-V has released preliminary specifications for the RuyiBook, a compact laptop built around the ‘XiangShan Nanhu’ CPU. The RuyiBook includes features such as dual 2.5 Gigabit Ethernet ports and an AMD RX 550 GPU for graphics. The XiangShan Nanhu CPU, also known as XiangShan-2 (RV64GCBK), is an open-source RISC-V processor capable of operating at speeds […] ⌘ Read more
Public Beta 5 of iOS 18, macOS Sequoia, iPadOS 18 Available for Testing
Apple has issued the 5th public beta of iOS 18, iPadOS 18, and macOS Sequoia. The 5th public beta build matches the 7th developer beta build, as is typically the case. There are rumors that iOS 18 dev beta 7 (and therefore iOS 18 public beta 5) is the final beta version of iOS 18.0, … [Read More](https://osxdaily.com/2024/08/21/public-beta-5-of-ios-18-macos-sequoia-ipados-18-available-for-test … ⌘ Read more
MacOS Sequoia 15 Beta 7 Available for Testing
The 7th beta version of macOS Sequoia 15 has been released for testing to those in the developer beta testing program. The same build is available to public beta testers as public beta 5. Additionally, iOS 18 beta 7, iPadOS 18 beta 7, watchOS 11 beta 7, tvOS 18 beta 7, and visionOS 2 beta … Read More ⌘ Read more
Recovery: 5.00 miles, 00:11:02 average pace, 00:55:11 duration
using the treadmill to slow the pace.
#running #treadmill
Pinellas County - Recovery: 5.03 miles, 00:10:37 average pace, 00:53:25 duration
felt like recovery in pace and breathing, but my heart rate hated me. the legs were definitely tired from the workout yesterday, too. it was good to get away from regression testing.
#running
5.15.165: longterm
Version:5.15.165 (longterm)Released:2024-08-19Source:linux-5.15.165.tar.xzPGP Signature:linux-5.15.165.tar.signPatch:full ( incremental)ChangeLog:ChangeLog-5.15.165 ⌘ Read more
5.10.224: longterm
Version:5.10.224 (longterm)Released:2024-08-19Source:linux-5.10.224.tar.xzPGP Signature:linux-5.10.224.tar.signPatch:full ( incremental)ChangeLog:ChangeLog-5.10.224 ⌘ Read more
5.4.282: longterm
Version:5.4.282 (longterm)Released:2024-08-19Source:linux-5.4.282.tar.xzPGP Signature:linux-5.4.282.tar.signPatch:full ( incremental)ChangeLog:ChangeLog-5.4.282 ⌘ Read more
Achat des fonds d’AXA par BNP Paribas : en quête de marges
Un article de Henry Bonner La banque BNP Paribas lance une acquisition des activités de gestion de fonds d’AXA – la société d’assurances et de finance – pour un peu plus de 5 milliards d’euros. Les Echos rapportent ainsi : “Après des années de valse-hésitation sur l’avenir de sa gestion d’actifs, AXA saute le pas. Le […] ⌘ Read more
Pinellas County - Zone 2: 5.86 miles, 00:13:01 average pace, 01:16:16 duration
just some “training” in the humidity and such trying to keep it in the blue zone. frustrating! felt fine though.
#running
Introducing the $5 Raspberry Pi Pico 2 with RP2350 Microcontroller
LILYGO Introduces Enhanced ESP32-Based Walkie Talkie in Latest Upgrade ⌘ Read more
奥运乒乓球决赛,为什么莫雷加德的衣服干爽而樊振东却大汗满身?
作为一名纺织品化学工程师,我就从纺织材料这个角度来和大家好好聊聊这个问题。
全篇干货没废话,先说下我个人的3个结论
1)衣服看起来出汗明显≠速干效果差,反而可能更好
2)日标的速干衣标准更适合剧烈运动出汗场景
3)樊振东是真的爱出汗体质
一:速干衣为什么比常规的衣服更加容易干燥?很多消费者都会吐槽涤纶、尼龙这类化学纤维做的衣服穿起来闷热不透气,但实际上恰恰相反,涤纶、尼龙是运动速干衣的主流材料
在问题开始前,有个核心知识点一定要给大家讲清楚,那就是大众所说的“面料透气”是个非常复杂指标,不是面料孔隙多穿上去透气(直接测试透气性其实是防风指标)。
穿着透气不闷汗的本质, 其实是让面料尽可能的吸收皮肤上的汗水,只要皮肤表面干爽你就会觉得穿着透气我们日常觉得棉T吸汗透气,是因为棉花的公定回潮率有8.5%(100g棉花能吸收空气中8.5g的水蒸气),你可以简单的理解成“饼干受潮变软”的这个过程。
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