But do you ever stop to wonder who invented the diamond blade and why? During the Second World War, a pharmacist called Richard Felker was irritated by the inefficiency of metal blades at cutting masonry, ceramics and tiles. When was … Continue reading →

The Urumi( equated as ‘curling blade’) is a versatile whip-like sword utilized in Kalaripayattu, an ancient Indian martial art that dates back to 300 B.C.E. The sword is considered by numerous specialists as the deadliest sword ever created. What is … Continue reading →

As the temperature drops at night time, or with cooling air conditioning turned on, the battery’s chemical reaction slows and the voltage lowers. When the smoke alarm’s chirp sounds, the internal circuit of the smoke alarm has detected that the … Continue reading →

Diamond is the hardest known material to date, with a Vickers hardness in the range of 70–150 GPa. Diamond demonstrates both high thermal conductivity and electrically insulating properties, and much attention has been put into finding practical applications of this … Continue reading →

The main reason is simple. Our expanding farms and cities are leaving less room for wildlife. The other major causes are the direct exploitation of wildlife such as hunting, climate change, pollution and the spread of invasive species. Why is … Continue reading →

to charge too much. Definition of overcharge transitive verb. 1 : to charge too much or too fully. 2 : to fill too full. 3 : exaggerate, overdraw. What does it mean to undercharge someone? : to charge (someone) too … Continue reading →

Under watering, the battery can cause sulfation that is irreversible. Pro tip: the best way to avoid this is to refrain from overcharging and check your water levels. The more the battery is used and recharged, the more often you … Continue reading →

Higher energy density and faster charging times Increased stability means that solid-state batteries can hold up to 50% more energy that their lithium-ion counterparts, while they’re expected to reach an 80% charge within 12 minutes. Is there a battery better … Continue reading →

You cannot charge and discharge a battery at the same time. A battery is a two terminal device which means that there is one current through the device. The Current is defined as charging if the value is net positive … Continue reading →

LiFePO4 batteries can be continually discharged to 100% DOD and there is no long-term effect. However, we recommend you only discharge down to 80% to maintain battery life. How much can a lithium ion battery be discharged? Also full charging … Continue reading →

When charging and when isolated different size batteries aren’t an issue as long as they are both of the same type (AGM etc). They both like the same voltage so both will be happy and only accept the charge they … Continue reading →

The unit can be fully recharged and ready for jump-starting or topping off devices in 3-12 hours on AC power, using the included micro-USB charging cable. Can a battery booster charge a battery? Can a portable jump starter charge a … Continue reading →

If you see ice or if the battery has started to bulge, it is probably frozen. Use sunlight and electricity. Open the hood of your car to see if the sun shining on your battery is enough to unfreeze it. … Continue reading →

You cannot use the 12V charger directly to charge a 24V battery. To do the task you will need a boost converter capable of generating output voltage greater than 24V. Boost converters step up the voltage, keeping the input and … Continue reading →

Can you add a second battery to a boat? Adding a second battery to a boat is an easy project that helps lend peace of mind. If you have a boat with just one battery, it’s wise to add a … Continue reading →