Yes, you can use Alexa to dial a specific telephone number by saying Alexa, call 555-555-5555 (for instance), without needing a mobile phone. You just won’t be able to call a specific contact name. Can you use Alexa Without smartphone? … Continue reading →

Recommended Nikon prime lenses for the Blackmagic Pocket Cinema Camera 4K Focal Length Cheap Option Filter Thread (mm) Zeiss Distagon T* 21mm F/2.8 ZF.2 82 $1,843 Samyang 24mm f/1.4 77 $669 Nikon 24mm f/1.4G 77 $1,879 Zeiss Distagon T* 25mm … Continue reading →

APS – Advanced Photo System. A now discontinued film format – But we are still able to process your old stock. Film processing has long been the heart of DS Colour Labs, and although time and technology have moved forward… … Continue reading →

Blackmagic Design Production 4K EF-Mount Overview The Blackmagic Design Production Camera 4K features a Super 35mm sized image sensor with a global shutter and a Canon EF lens mount. Do EF lenses work on BMPCC 4K? The T Speed Booster … Continue reading →

6144 x 3456 (6K) RAW 3:1 is 323 MB/s, so for 10 minutes we have 600 seconds * 323 MB/s bitrate = 193800 MB, / 1000 MB per GB and you have ~193.8 GB of footage for 10 minutes of … Continue reading →

Nothing. How much would it cost for you to use Alexa on Alexa Built-In smartphones? Answer: Nothing, it’s absolutely free. Question 5: Did you know you can access Alexa through Touch on any smartphone. How much would it cost to … Continue reading →

between 70 and 96%. 5.1. 15 Energy conservation by using high-efficiency electric motors. Motor efficiency varies between 70 and 96% [1]. The portion of electric energy that is not converted to mechanical power is converted to heat, which is mostly … Continue reading →

The voltage efficiency is determined largely be the voltage difference between the charging voltage and voltage of the battery during discharging. The dependence of the battery voltage on BSOC will therefore impact voltage efficiency. What is battery energy efficiency? The … Continue reading →

The specific energy density of the cell was enhanced by effectively increasing the amount of active material while maintaining the mass transfer capability of the ions at the target power. Variation of Li concentration in the solid phase of cathode … Continue reading →

Lithium Cobalt Oxide battery has the highest energy density in the range of 150-200 Wh/kg, and some special design takes it up to 240 Wh/kg. These win if energy density is the only criterion. What has the highest energy density? … Continue reading →

Tasks (like lifting a box) take a certain amount of energy (a certain number of joules), but the faster the task is done (the smaller Δt), the more power it takes (more watts). Are energy and power the same thing? … Continue reading →

The Tesla Model 3 comes with battery packs ranging in capacity from 50 kWh (standard range) to 82 kWh (extended range). It has a range of between 220 miles (50 kWh) and 353 miles (82 kWh). This means that the … Continue reading →

13.5 kWh. Powerwall models Tesla introduced an improved Powerwall 2 in October 2016 with a 13.5 kWh capacity and capable of delivering 5 kW of power continuously and up to 7 kW of peak power in short bursts (up to … Continue reading →

A battery with high energy density has a longer battery run time in relation to the battery size. Alternately, a battery with high energy density can deliver the same amount of energy, but in a smaller footprint compared to a … Continue reading →

AA, AAA, C, and D batteries are all 1.5 volts, but they deliver different currents. Do batteries always have the same current? No, the current in a circuit is determined by the voltage applied, the voltage from the battery, and … Continue reading →