A mechanical pencil can keep going for up to seven years. They are deliberately intended to be more durable than the wood case pencils and they surely don’t cost a fortune. So, here are some of the mechanical pencils for … Continue reading →

Many sources suggest that a full head of long hair weighs around an ounce or two (30–60 grams). Its maximum weight can go up to 5 pounds. However, 5 pounds or 2.5 kilograms seems like a bit of a stretch … Continue reading →

167 lbs. Peter Parker (Earth-616) Spider-Man Powers/Abilities: Spider Powers Height: 5′ 10″ (1.78 m) Weight: 167 lbs (76 kg) Hair Color: Brown How much weight can Spider-Man carry? ten tonsGreat Power. Like his namesake, Spider-Man’s strength and agility stand far … Continue reading →

Anyways, Arduino was meant as an entry level microcontroller for beginners and hobbyists, which is great since many people got into electronics because of it. It is also very useful for fast prototyping. But for the reasons given above, it … Continue reading →

Read the numbers after the letter as the date of the month and the year in which the item was produced. For example, if a code reads “D1519,” that means April 15, 2019. Many products might have a closed code … Continue reading →

The power adapter comes with dual barrel connector, a 2.1mm, and a 1.1mm connector. You can use this SMPS Power Adaptor – 12V/1A to power-up the Arduino UNO/Arduino MEGA, DC motors, LCD screens, DVD players, Hard Drives, Audio Gear, and … Continue reading →

To find the Best If Used By (BIUB) date of the batteries in question, please look on the uppermost section of the cells, near the battery type (AA, 9V, etc.). You will see a white box with the Best If … Continue reading →

Voltage and Guitar Pedals Most guitar pedals require 9V power (even many multi-effects pedalboards). If you have a guitar pedal with 9V written on it, make sure you use a 9V power supply or battery. How long can a 9V … Continue reading →

Lava can’t be forged into anything. The (grossly simplified) forging process involves heating the material, and hammering it into shape. The properties of any kind of stone are not conductive to this process. Can you make steel from lava? Yes … Continue reading →

Why non-rechargeable? It’s a bit technical, but here’s the simplified version of the answer: It comes down to voltage. A smoke detector is a delicate machine, and it requires a stable, and very specific, voltage in order to operate properly. … Continue reading →

In addition to reusing your old or dead batteries, you can make Earth a better living place by trying out DIY electronic recycling projects. DIY Solar Powered Generator. A Portable Rechargeable Lighting System. A Portable Mini Fan. Cool DIY Flashlight … Continue reading →

“First, some batteries have potentially toxic metals in them such as cadmium, lead and, historically, mercury. Diverting these metals from landfill and recycling them instead is important to ensure that the metals don’t leak out of landfills and pollute our … Continue reading →

Low Battery As the battery in a smoke alarm gets weak, the smoke alarm will “chirp” about once a minute to let you know that the battery needs to be replaced. Note: Only the device with a low battery will … Continue reading →

Graphene, a material consisting of a single layer of carbon atoms, has been touted as the strongest material known to exist, 200 times stronger than steel, lighter than paper, and with extraordinary mechanical and electrical properties. Is graphite The strongest … Continue reading →

Different bonding, different color. As it happens, graphite has the double bonds that tend to create very low lying excited states which means it absorbs basically every color which is why it’s black. Why is diamond clear but graphite black? … Continue reading →