This is a really great overview of a pretty big chunk of mathematics: How Math Becomes Difficult
How Math Becomes Difficult
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Author Archives: Jay Jay
Mail Call #26: Headset from Rown Fusny and Electronics from AliExpress | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video over here.
You can support this channel on Patreon: patreon.com/JohnElliotV
Update: if you’re interested in the Rown Fusny headset I do a demo video over here: Demo #8: Unboxing and Product Review of Rown Fusny R03U Wireless Mono Headset | In The Lab.
In this video we take a look at what has arrived in the mail recently from AliExpress:
- TJ-56-428 4-Digit Digital DIY Clock Kits with Acrylic Shell, DIY Alarm Clock Soldering Practice Kit for Learning Electronics
- WeAct ESP32 ESP-32 ESP32C3 ESP32-C3FH4 Development Board Wireless WiFi Bluetooth-compatible Module Micropython
I also mention my headset which arrived from Rown Fusny which we will be looking at together in a future video.
The equipment I got from Jaycar included:
- 220 Ohm 0.5 Watt Metal Film Resistors – Pack of 8
- 1M Ohm 0.5 Watt Metal Film Resistors – Pack of 8
- Duinotech Arduino Compatible Temperature Sensor Module
- LM311 Voltage Comparator Linear IC
Thanks very much for watching! And please remember to hit like and subscribe! :)
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yum Cha HD Webcam with Mic USB Camera |
Let’s go shopping!
Perfectly Reball Small BGA Chips Every Time
I found this video particularly helpful: Perfectly Reball Small BGA Chips Every Time. It’s funny this dude’s setup is very similar to mine!
Creating helpful, reliable, people-first content
Today I found some documentation from Google: Creating helpful, reliable, people-first content.
Mail Call #25: Gorilla Glue, COM Books, Lens Care, Vacuum Filter, Thread Repair, and More!
This post is part of my video blog and you can find more information about this video over here.
You can support this channel on Patreon: patreon.com/JohnElliotV
In this video we look at what has arrived recently from Amazon, eBay, and AliExpress:
- Gorilla Glue Clear – Expanding Water-Resistant Glue for Indoor & Outdoor Use – Easy Application Nozzle – Ceramic and Shoe Repair Glue – 51ml/1.72oz Bottle, (Pack of 1)
- Essential COM
- COM Programming with Microsoft .NET
- Zeiss Lens Care Pack – 2-8 Ounce Bottles of Lens Cleaner, 2 Microfiber Cleaning Cloths
- 4pcs Filter For SHARK WV200, WV200UK, WV251 Cordless Hand-held Vacuum Cleaner
- XCAN Thread Repair Kit M3 M4 M5 M6 M8 M10 M12 M14 Screw Thread Inserts For Restoring Damaged Threads Repair Tools Drill Bit
- Hex Shank Titanium Plated HSS Screw Thread Metric Tap Drill Bits Screw Machine Compound Tap M3 M4 M5 M6 M8 M10 Hand Tools
- 175Pcs Sliver Split Pins Cotter Fixings Assorted Sizes Zinc Plated Steel Hard Case Link Split Cotter Pin high quality
- Adjustable T-Handle Ratchet Tap Reamer Hand Manual Holder Wrench M3 M4 M5 M6 M8 Metric Machine Screw Thread Plug T-shaped Tool
- Brass Threaded Insert Nut Kit M2 M2.5 M3 M4 M5 M6 M8 Hot Melt Heat Knurled Embed Injection Copper Insertnut for 3D Print Plastic
- JEYI Adhesive Cable Holder Clips Cord Management Wire Organizer for Desktop USB Charging Cable Nightstand Power Cord Mouse Cable
- 600Pcs 0.5-6.0mm2 Uninsulated Copper Terminal Bootlace Ferrules Cord End Electrical Cable Crimp Terminals
- 240pcs 15 Sizes Compression Springs Assortment Kit, Mini Stainless Steel Springs for Repairs, 0.39″ to 1.18″ Length, 0.16″ – 0.2
- 100/200/250pcs 10 Types Durable Car Remote Control Tablet Actile Push Button Switch Car Keys Button Touch Microswitch with Box
- 50 Pcs Disposable Make Up Lip Gloss Brush Lipstick Gloss Wands Applicator Hollow Lip Brushes Portable Cosmetic Beauty Tools
- 50pcs Dental Disposable Mixing Paper Dentistry Tools Cement Powder Pad Paper Denture Lab Tool Material
- Magnetic Phone Car Holder Universal Magnetic Mount Bracket Stick on Car Dashboard Wall for iPhone Xiaomi Huawei Car Phone Holder
- 60pcs Silver M3-M12 304 Wire Thread Insert Repair Kit Set Stainless Steel Spiral For Hardware Repair Tools Easy Install
- 40pcs box-packed 8-29mm stainless steel American style throat clamp box clamp combination clamp ring clamp ring joint
- Total 400/650/1140/2100X M1.6 M2 M2.5 M3 M4 M5 304 Stainless Steel Hexagon Hex Socket Cap Head Screw Bolt Nut Set Assortment Kit
- 250pcs/box M3 Black Plastic Nylon Insulated Hex Standoff Hexagon Pillar Spacer Column Screw Nut Mix Size Assortment Kit Set
- 600Pcs Screws Bolts and Nuts Assortment Kit Metric Machine Screws and Flat Washers M3 M4 M5 M6 Phillips Pan Head Sets – 16 Sizes
- 1060pcs M2 M3 M4 M5 Hex Socket Screw Set Carbon Steel Flat Round Cap Head Screws Bolts and Nuts Assortment Kit with Storage Box
Here is some extra info:
Thanks very much for watching! And please remember to hit like and subscribe! :)
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
3ELIGHTING 14″-27″ With 2 Arms VESA Wall Mount |
Let’s go shopping!
Voyager bug fix
This is too cool. A core dump then binary patch to work around memory hardware failure 15 BILLION MILES AWAY: How NASA Fixed a Software Bug 15 BILLION MILES AWAY | Voyager 1
Microcontroller display
Here’s an interesting video about integrating a display with your microcontroller: The BASICS of Adding a Display to Your Arduino, ESP32, STM32, or other MCU Project. The graphics library he recommends is LVGL.
Mail Call #24: Mesh Organizer, Peak Atlas Accessories, Metcal Sponge, Decade Box, and More!
This post is part of my video blog and you can find more information about this video over here.
You can support this channel on Patreon: patreon.com/JohnElliotV
In this video we take a look at what has arrived in the mail from eBay, Peak Electronic Design, element14, AliExpress, and Amazon.
- Office Desk Pen Pencil Pot Ruler Scissor Cup Mesh Organize ContaineSE Square
- Office Desk Pen Pencil Pot Ruler Scissor Cup Mesh Organize ContaineSE Round
- Peak Electronic Design PCA23 Peak SOT-23 Component Adapter
- Peak Electronic Design LX30 2mm Banana Plugs 300mm Extension Cable
- Peak Electronic Design LCRLHP2 Replacement LCR Hook Probe
- Peak Electronic Design CRC01EM ESR 2mm Banana Socket Croc Clip Set
- Peak Electronic Design ENP90 2mm Banana Socket Needle Probe Set
- Peak Electronic Design SMD03M LCR/ESR 2mm Banana Socket SMD Tweezers
- Peak Electronic Design 3DPAS 3D Printed Peak Atlas Stand
- METCAL AC-YS4 Sponge, Round, Replacement, for use with WS2 Workstand
- MULTICOMP PRO MP701033 Decade Box, Resistance, 7, 1ohm to 11.11111Mohm, 1 %, Multicomp Pro Resistance Box
- 100PCS Pitch jumper shorted cap & Headers & Wire Housings 2.54MM SHUNT Black yellow white green red blue
- Eversure Wide Space Switched 4 Outlet Powerboard, Black
Thanks very much for watching! And please remember to hit like and subscribe! :)
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Aussishop Calipers notes |
Let’s go shopping!
Running Linux in PDF
Gromit-MPX
Gromit-MPX is an on-screen annotation tool that works with any Unix desktop environment under X11 as well as Wayland.