The weight is 22 ounces, but with Tungsten it would be about 54 ounces. That’s 3.4 lbs as opposed to 1.3. Any sword made of tungsten (more specifically tungsten carbide) would not have much advantage over a traditional iron or … Continue reading →

Strength. Carbon nanotubes are the strongest and stiffest materials yet discovered in terms of tensile strength and elastic modulus respectively. This strength results from the covalent sp2 bonds formed between the individual carbon atoms. Are CNTs stronger than steel? New … Continue reading →

Magnets are a primary component in electric motors. A motor operates when a coil of wire, encircled by strong magnets, spins. The electric current induced in the coil emits a magnetic field, which opposes the magnetic field emitted by the … Continue reading →

Japanese-Style Steel Knives made by Japanese manufacturers traditionally use high-carbon steel. It’s a superior material for knife blades because it holds its super-sharp edge longer than stainless steel, due to a rating of 60-61 on the Rockwell scale. High-carbon steel … Continue reading →

In the real world you could definitely make a sword from uranium, or plutonium, or a whole host of radio isotopes, if you could get enough of the metal. Is it possible to make a uranium sword? No. Uranium is … Continue reading →

A real diamond wouldn’t be affected by the drastic temperature change and simply sink to the bottom of the glass, but a fake diamond would shatter immediately. Do real diamonds shatter? The study suggested that a diamond is five times … Continue reading →

The Mohs Scale of Hardness 10 Diamond 9 Corundum (rubies and sapphires) 8 Topaz 7 Quartz [Example: It scratches window glass] 6 Feldspar [Example: A steel file will scratch it] What are the top 10 hardest rocks? Definition 10 Diamond … Continue reading →

Can aluminium air battery be recharged? However, it is possible to mechanically recharge the battery with new aluminium anodes made from recycling the hydrated aluminium oxide. Such recycling would be essential if aluminium–air batteries were to be widely adopted. Are … Continue reading →

Current collector has a major role in electrochemical performance and cycle stability of supercapacitor. It collects electrons and supports the electrode material. Why separator is used in supercapacitor? Separator in a supercapacitor is used as a sandwich between two electrodes. … Continue reading →

Generally speaking, diamond has an exceptionally high transmission over a very broad range of wavelengths, all kinds of rays can pass through diamond, including X-rays, long and short UV, and IR. What can pierce diamond? Using these imperfect stones as … Continue reading →

Bill Gates has been an ardent supporter of initiatives to tackle climate change, and his new book, How to Avoid a Climate Disaster, spells out what he believes the world should focus on to speed up its efforts to reach … Continue reading →

When an atom is attracted to another atom because it has an unequal number of electrons and protons, the atom is called an ION. If the atom has more electrons than protons, it is a negative ion, or ANION. If … Continue reading →

The promise of fusion power lies in the fact that it can convert tiny amounts of highly abundant fuel into enormous amounts of energy. And while it does produce some radioactive waste, it only sticks around for about 100 years, … Continue reading →

Elephant In brute strength, elephants are the strongest mammals and the strongest land animals. African elephants can weigh up to 6,350kg and they can carry up to 9,000kg, the weight of 130 adult humans. What is the strongest animal in … Continue reading →

The shelf life for LFP cells is at least 10 years. However due to internal discharge (approx 3% a month), the batteries should be charged at least one a year when stored for a long period of time. How long … Continue reading →